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807972681216 = 2935910398581
BaseRepresentation
bin10111100000111101110…
…11001011011000000000
32212020112000010220120010
423300132323023120000
5101214212001244331
61415102202344520
7112242213321411
oct13603673133000
92766460126503
10807972681216
11291728573138
121107104bb140
135b26494601c
142b16b15b808
151603d1e2e46
hexbc1eecb600

807972681216 has 160 divisors (see below), whose sum is σ = 2191334745600. Its totient is φ = 264473763840.

The previous prime is 807972681137. The next prime is 807972681223. The reversal of 807972681216 is 612186279708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94154046 + ... + 94162626.

It is an arithmetic number, because the mean of its divisors is an integer number (13695842160).

Almost surely, 2807972681216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 807972681216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095667372800).

807972681216 is an abundant number, since it is smaller than the sum of its proper divisors (1383362064384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

807972681216 is a wasteful number, since it uses less digits than its factorization.

807972681216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700 (or 9684 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 807972681216 in words is "eight hundred seven billion, nine hundred seventy-two million, six hundred eighty-one thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 59 64 96 118 128 177 192 236 256 354 384 472 512 708 768 944 1039 1416 1536 1888 2078 2832 3117 3776 4156 5664 6234 7552 8312 8581 11328 12468 15104 16624 17162 22656 24936 25743 30208 33248 34324 45312 49872 51486 61301 66496 68648 90624 99744 102972 122602 132992 137296 183903 199488 205944 245204 265984 274592 367806 398976 411888 490408 506279 531968 549184 735612 797952 823776 980816 1012558 1098368 1471224 1518837 1595904 1647552 1961632 2025116 2196736 2942448 3037674 3295104 3923264 4050232 4393472 5884896 6075348 6590208 7846528 8100464 8915659 11769792 12150696 13180416 15693056 16200928 17831318 23539584 24301392 26746977 31386112 32401856 35662636 47079168 48602784 53493954 64803712 71325272 94158336 97205568 106987908 129607424 142650544 194411136 213975816 259214848 285301088 388822272 427951632 526023881 570602176 777644544 855903264 1052047762 1141204352 1578071643 1711806528 2104095524 2282408704 3156143286 3423613056 4208191048 4564817408 6312286572 6847226112 8416382096 12624573144 13694452224 16832764192 25249146288 33665528384 50498292576 67331056768 100996585152 134662113536 201993170304 269324227072 403986340608 807972681216