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31325053045 = 51113379115597
BaseRepresentation
bin11101001011000111…
…100110000001110101
32222212002121120102211
4131023013212001311
51003123203144140
622220204333421
72156156362156
oct351307460165
988762546384
1031325053045
11123151a2aa0
1260a2844271
132c52a62460
14173240b92d
15c351172ea
hex74b1e6075

31325053045 has 32 divisors (see below), whose sum is σ = 44278657920. Its totient is φ = 20973738240.

The previous prime is 31325053033. The next prime is 31325053049. The reversal of 31325053045 is 54035052313.

It is not a de Polignac number, because 31325053045 - 213 = 31325044853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31325052998 and 31325053016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31325053049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213187 + ... + 328783.

It is an arithmetic number, because the mean of its divisors is an integer number (1383708060).

Almost surely, 231325053045 is an apocalyptic number.

It is an amenable number.

31325053045 is a deficient number, since it is larger than the sum of its proper divisors (12953604875).

31325053045 is a wasteful number, since it uses less digits than its factorization.

31325053045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116005.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 31325053045 in words is "thirty-one billion, three hundred twenty-five million, fifty-three thousand, forty-five".

Divisors: 1 5 11 13 55 65 143 379 715 1895 4169 4927 20845 24635 54197 115597 270985 577985 1271567 1502761 6357835 7513805 16530371 43811263 82651855 219056315 481923893 569546419 2409619465 2847732095 6265010609 31325053045