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31199936076 = 2234127758237
BaseRepresentation
bin11101000011101010…
…010011111001001100
32222112101011222020000
4131003222103321030
51002344140423301
622155534524300
72153110036521
oct350352237114
988471158200
1031199936076
1112260606841
126068966690
132c32b6644a
14171d95d148
15c29150786
hex743a93e4c

31199936076 has 60 divisors (see below), whose sum is σ = 82205131008. Its totient is φ = 10318075488.

The previous prime is 31199936071. The next prime is 31199936107. The reversal of 31199936076 is 67063999113.

It is a super-2 number, since 2×311999360762 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (31199936071) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 337971 + ... + 420266.

Almost surely, 231199936076 is an apocalyptic number.

31199936076 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31199936076 is an abundant number, since it is smaller than the sum of its proper divisors (51005194932).

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

31199936076 is a wasteful number, since it uses less digits than its factorization.

31199936076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758380 (or 758369 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The spelling of 31199936076 in words is "thirty-one billion, one hundred ninety-nine million, nine hundred thirty-six thousand, seventy-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 127 162 254 324 381 508 762 1143 1524 2286 3429 4572 6858 10287 13716 20574 41148 758237 1516474 2274711 3032948 4549422 6824133 9098844 13648266 20472399 27296532 40944798 61417197 81889596 96296099 122834394 192592198 245668788 288888297 385184396 577776594 866664891 1155553188 1733329782 2599994673 3466659564 5199989346 7799984019 10399978692 15599968038 31199936076