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16216931292 = 2231578607713
BaseRepresentation
bin11110001101001101…
…01011101111011100
31112212012000110120220
433012212223233130
5231203013300132
611241105041340
71112604433032
oct170646535734
945765013526
1016216931292
116972042561
123187026250
1316b59bac43
14adbac0552
1564da96a2c
hex3c69abbdc

16216931292 has 24 divisors (see below), whose sum is σ = 38080526736. Its totient is φ = 5371212288.

The previous prime is 16216931273. The next prime is 16216931303. The reversal of 16216931292 is 29213961261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301973 + ... + 4305740.

It is an arithmetic number, because the mean of its divisors is an integer number (1586688614).

Almost surely, 216216931292 is an apocalyptic number.

16216931292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16216931292 is an abundant number, since it is smaller than the sum of its proper divisors (21863595444).

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

16216931292 is a wasteful number, since it uses less digits than its factorization.

16216931292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607877 (or 8607875 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The spelling of 16216931292 in words is "sixteen billion, two hundred sixteen million, nine hundred thirty-one thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 157 314 471 628 942 1884 8607713 17215426 25823139 34430852 51646278 103292556 1351410941 2702821882 4054232823 5405643764 8108465646 16216931292