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31023232342 = 2157557177379
BaseRepresentation
bin11100111001001000…
…001111010101010110
32222002001200111021021
4130321020033111112
51002013421413332
622130223311354
72145533060344
oct347110172526
988061614237
1031023232342
111217a8956a3
12601974b55a
132c05377a1b
1417042c2994
15c18898c97
hex73920f556

31023232342 has 16 divisors (see below), whose sum is σ = 46915590960. Its totient is φ = 15385058208.

The previous prime is 31023232271. The next prime is 31023232349. The reversal of 31023232342 is 24323232013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023232349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86209 + ... + 263587.

It is an arithmetic number, because the mean of its divisors is an integer number (2932224435).

Almost surely, 231023232342 is an apocalyptic number.

31023232342 is a deficient number, since it is larger than the sum of its proper divisors (15892358618).

31023232342 is a wasteful number, since it uses less digits than its factorization.

31023232342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178095.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31023232342 its reverse (24323232013), we get a palindrome (55346464355).

The spelling of 31023232342 in words is "thirty-one billion, twenty-three million, two hundred thirty-two thousand, three hundred forty-two".

Divisors: 1 2 157 314 557 1114 87449 174898 177379 354758 27848503 55697006 98800103 197600206 15511616171 31023232342