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16831143312 = 2431918455201
BaseRepresentation
bin11111010110011011…
…01101110110010000
31121102222202200002020
433223031231312100
5233432233041222
611422045451440
71134043233444
oct175315556620
947388680066
1016831143312
1171578180a5
123318870b80
1317830215c9
14b594c6824
1568797065c
hex3eb36dd90

16831143312 has 40 divisors (see below), whose sum is σ = 45768900960. Its totient is φ = 5315097600.

The previous prime is 16831143289. The next prime is 16831143361. The reversal of 16831143312 is 21334113861.

It is a nude number because it is divisible by every one of its digits.

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, 9226689 + ... + 9228512.

It is an arithmetic number, because the mean of its divisors is an integer number (1144222524).

Almost surely, 216831143312 is an apocalyptic number.

16831143312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16831143312 is an abundant number, since it is smaller than the sum of its proper divisors (28937757648).

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

16831143312 is a wasteful number, since it uses less digits than its factorization.

16831143312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455231 (or 18455225 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The spelling of 16831143312 in words is "sixteen billion, eight hundred thirty-one million, one hundred forty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 18455201 36910402 55365603 73820804 110731206 147641608 221462412 295283216 350648819 442924824 701297638 885849648 1051946457 1402595276 2103892914 2805190552 4207785828 5610381104 8415571656 16831143312