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10905972816 = 243537395801
BaseRepresentation
bin10100010100000101…
…11111000001010000
31001011001111211012010
422022002333001100
5134313412112231
65002104502520
7534155145054
oct121202770120
931131454163
1010905972816
114697156882
12214447aa40
13104a5c566b
147565d5c64
1543c6b9546
hex28a0bf050

10905972816 has 80 divisors (see below), whose sum is σ = 28749142080. Its totient is φ = 3561292800.

The previous prime is 10905972799. The next prime is 10905972929. The reversal of 10905972816 is 61827950901.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1877116 + ... + 1882916.

It is an arithmetic number, because the mean of its divisors is an integer number (359364276).

Almost surely, 210905972816 is an apocalyptic number.

10905972816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10905972816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14374571040).

10905972816 is an abundant number, since it is smaller than the sum of its proper divisors (17843169264).

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

10905972816 is a wasteful number, since it uses less digits than its factorization.

10905972816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 10905972816 in words is "ten billion, nine hundred five million, nine hundred seventy-two thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 53 106 159 212 318 424 636 739 848 1272 1478 2217 2544 2956 4434 5801 5912 8868 11602 11824 17403 17736 23204 34806 35472 39167 46408 69612 78334 92816 117501 139224 156668 235002 278448 307453 313336 470004 614906 626672 922359 940008 1229812 1844718 1880016 2459624 3689436 4286939 4919248 7378872 8573878 12860817 14757744 17147756 25721634 34295512 51443268 68591024 102886536 205773072 227207767 454415534 681623301 908831068 1363246602 1817662136 2726493204 3635324272 5452986408 10905972816