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16831386388 = 2231472888021
BaseRepresentation
bin11111010110011101…
…01001001100010100
31121110000020000112001
433223032221030110
5233432313331023
611422055005044
71134045265225
oct175316511424
947400200461
1016831386388
117157973793
123318969784
1317830a813b
14b5954b24c
156879bc6ad
hex3eb3a9314

16831386388 has 24 divisors (see below), whose sum is σ = 31052012544. Its totient is φ = 7970935200.

The previous prime is 16831386353. The next prime is 16831386391. The reversal of 16831386388 is 88368313861.

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, 1438183 + ... + 1449838.

It is an arithmetic number, because the mean of its divisors is an integer number (1293833856).

Almost surely, 216831386388 is an apocalyptic number.

It is an amenable number.

16831386388 is a deficient number, since it is larger than the sum of its proper divisors (14220626156).

16831386388 is a wasteful number, since it uses less digits than its factorization.

16831386388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888103 (or 2888101 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The spelling of 16831386388 in words is "sixteen billion, eight hundred thirty-one million, three hundred eighty-six thousand, three hundred eighty-eight".

Divisors: 1 2 4 31 47 62 94 124 188 1457 2914 5828 2888021 5776042 11552084 89528651 135736987 179057302 271473974 358114604 542947948 4207846597 8415693194 16831386388