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11687751012 = 22375313811901
BaseRepresentation
bin10101110001010010…
…01110110101100100
31010011112120021021010
422320221032311210
5142414031013022
65211433022220
7562430146560
oct127051166544
933145507233
1011687751012
114a58481363
122322254970
131143568602
147cc37a6a0
1548614250c
hex2b8a4ed64

11687751012 has 96 divisors (see below), whose sum is σ = 31795110144. Its totient is φ = 3272256000.

The previous prime is 11687750993. The next prime is 11687751043. The reversal of 11687751012 is 21015778611.

11687751012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×116877510123 (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6147262 + ... + 6149162.

It is an arithmetic number, because the mean of its divisors is an integer number (331199064).

Almost surely, 211687751012 is an apocalyptic number.

11687751012 is a gapful number since it is divisible by the number (12) 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 11687751012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15897555072).

11687751012 is an abundant number, since it is smaller than the sum of its proper divisors (20107359132).

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

11687751012 is a wasteful number, since it uses less digits than its factorization.

11687751012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 3347 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 39.

The spelling of 11687751012 in words is "eleven billion, six hundred eighty-seven million, seven hundred fifty-one thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 53 84 106 159 212 318 371 636 742 1113 1381 1484 1901 2226 2762 3802 4143 4452 5524 5703 7604 8286 9667 11406 13307 16572 19334 22812 26614 29001 38668 39921 53228 58002 73193 79842 100753 116004 146386 159684 201506 219579 292772 302259 403012 439158 512351 604518 705271 878316 1024702 1209036 1410542 1537053 2049404 2115813 2625281 2821084 3074106 4231626 5250562 6148212 7875843 8463252 10501124 15751686 18376967 31503372 36753934 55130901 73507868 110261802 139139893 220523604 278279786 417419679 556559572 834839358 973979251 1669678716 1947958502 2921937753 3895917004 5843875506 11687751012