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16140956 = 22131719312
BaseRepresentation
bin111101100100…
…101010011100
31010101001020012
4331210222130
513113002311
61333542352
7254124116
oct75445234
933331205
1016140956
119124a37
1254a49b8
133461a80
1422023b6
15163c78b
hexf64a9c

16140956 has 72 divisors (see below), whose sum is σ = 35033040. Its totient is φ = 6428160.

The previous prime is 16140947. The next prime is 16140977. The reversal of 16140956 is 65904161.

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 23 ways as a sum of consecutive naturals, for example, 520661 + ... + 520691.

It is an arithmetic number, because the mean of its divisors is an integer number (486570).

Almost surely, 216140956 is an apocalyptic number.

It is an amenable number.

16140956 is an abundant number, since it is smaller than the sum of its proper divisors (18892084).

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

16140956 is a wasteful number, since it uses less digits than its factorization.

16140956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 16140956 is about 4017.5808641520. The cubic root of 16140956 is about 252.7220201922.

The spelling of 16140956 in words is "sixteen million, one hundred forty thousand, nine hundred fifty-six".

Divisors: 1 2 4 13 17 19 26 31 34 38 52 62 68 76 124 221 247 323 403 442 494 527 589 646 806 884 961 988 1054 1178 1292 1612 1922 2108 2356 3844 4199 6851 7657 8398 10013 12493 13702 15314 16337 16796 18259 20026 24986 27404 30628 32674 36518 40052 49972 65348 73036 130169 212381 237367 260338 310403 424762 474734 520676 620806 849524 949468 1241612 4035239 8070478 16140956