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31346142145 = 519329959391
BaseRepresentation
bin11101001100011000…
…000010101111000001
32222220120022000020121
4131030120002233001
51003144103022040
622222240340241
72156533545343
oct351430025701
988816260217
1031346142145
11123260975aa
1260a9914681
132c57237506
14173513b293
15c36dd0c4a
hex74c602bc1

31346142145 has 8 divisors (see below), whose sum is σ = 39595127040. Its totient is φ = 23757076080.

The previous prime is 31346142127. The next prime is 31346142151. The reversal of 31346142145 is 54124164313.

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

It is not a de Polignac number, because 31346142145 - 27 = 31346142017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31346142145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164979601 + ... + 164979790.

It is an arithmetic number, because the mean of its divisors is an integer number (4949390880).

Almost surely, 231346142145 is an apocalyptic number.

It is an amenable number.

31346142145 is a deficient number, since it is larger than the sum of its proper divisors (8248984895).

31346142145 is a wasteful number, since it uses less digits than its factorization.

31346142145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329959415.

The product of its digits is 34560, while the sum is 34.

The spelling of 31346142145 in words is "thirty-one billion, three hundred forty-six million, one hundred forty-two thousand, one hundred forty-five".

Divisors: 1 5 19 95 329959391 1649796955 6269228429 31346142145