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31045799123 = 131877270229
BaseRepresentation
bin11100111010011110…
…010100110011010011
32222010122011000001222
4130322132110303103
51002040211032443
622132351115255
72146225636613
oct347236246323
988118130058
1031045799123
11121915a9429
126025212b2b
132c09c49551
1417072b8a43
15c1a855468
hex73a794cd3

31045799123 has 8 divisors (see below), whose sum is σ = 31318576080. Its totient is φ = 30773564640.

The previous prime is 31045799101. The next prime is 31045799131. The reversal of 31045799123 is 32199754013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31045799123 - 220 = 31044750547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31045799923) 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, 20228 + ... + 250001.

It is an arithmetic number, because the mean of its divisors is an integer number (3914822010).

Almost surely, 231045799123 is an apocalyptic number.

31045799123 is a deficient number, since it is larger than the sum of its proper divisors (272776957).

31045799123 is a wasteful number, since it uses less digits than its factorization.

31045799123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271237.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 31045799123 in words is "thirty-one billion, forty-five million, seven hundred ninety-nine thousand, one hundred twenty-three".

Divisors: 1 131 877 114887 270229 35399999 236990833 31045799123