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31010031342 = 23234916193049
BaseRepresentation
bin11100111000010101…
…111000011011101110
32222001010211210220100
4130320111320123232
51002002032000332
622125032331530
72145312626433
oct347025703356
988033753810
1031010031342
1112173399584
126015243ba6
132c02705194
141702647b8a
15c1763c67c
hex7385786ee

31010031342 has 48 divisors (see below), whose sum is σ = 67444650000. Its totient is φ = 10297314432.

The previous prime is 31010031341. The next prime is 31010031373. The reversal of 31010031342 is 24313001013.

31010031342 is a `hidden beast` number, since 310 + 1 + 0 + 0 + 313 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010031341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10169034 + ... + 10172082.

It is an arithmetic number, because the mean of its divisors is an integer number (1405096875).

Almost surely, 231010031342 is an apocalyptic number.

31010031342 is an abundant number, since it is smaller than the sum of its proper divisors (36434618658).

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

31010031342 is a wasteful number, since it uses less digits than its factorization.

31010031342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025 (or 5022 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31010031342 its reverse (24313001013), we get a palindrome (55323032355).

The spelling of 31010031342 in words is "thirty-one billion, ten million, thirty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 349 698 1047 1619 2094 3049 3141 3238 4857 6098 6282 9147 9714 14571 18294 27441 29142 54882 565031 1064101 1130062 1695093 2128202 3192303 3390186 4936331 5085279 6384606 9576909 9872662 10170558 14808993 19153818 29617986 44426979 88853958 1722779519 3445559038 5168338557 10336677114 15505015671 31010031342