Base | Representation |
---|---|
bin | 11101001100001010… |
… | …001011110000110001 |
3 | 2222220022110102122120 |
4 | 131030022023300301 |
5 | 1003142140242410 |
6 | 22222030424453 |
7 | 2156460634365 |
oct | 351412136061 |
9 | 88808412576 |
10 | 31342509105 |
11 | 12324035a96 |
12 | 60a8662129 |
13 | 2c5656499b |
14 | 17348732a5 |
15 | c36914570 |
hex | 74c28bc31 |
31342509105 has 16 divisors (see below), whose sum is σ = 50356103424. Its totient is φ = 16646641920.
The previous prime is 31342509089. The next prime is 31342509127. The reversal of 31342509105 is 50190524313.
It is not a de Polignac number, because 31342509105 - 24 = 31342509089 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4331449 + ... + 4338678.
It is an arithmetic number, because the mean of its divisors is an integer number (3147256464).
Almost surely, 231342509105 is an apocalyptic number.
It is an amenable number.
31342509105 is a deficient number, since it is larger than the sum of its proper divisors (19013594319).
31342509105 is a wasteful number, since it uses less digits than its factorization.
31342509105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8670376.
The product of its (nonzero) digits is 16200, while the sum is 33.
The spelling of 31342509105 in words is "thirty-one billion, three hundred forty-two million, five hundred nine thousand, one hundred five".
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