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31434020315 = 529216786347
BaseRepresentation
bin11101010001100111…
…010001010111011011
310000010200122200102122
4131101213101113123
51003334102122230
622235100051455
72161651523045
oct352147212733
9100120580378
1031434020315
1112370759795
126113233b8b
132c6c4c5729
141742a94a95
15c3e98dbe5
hex7519d15db

31434020315 has 8 divisors (see below), whose sum is σ = 39021542640. Its totient is φ = 24280070752.

The previous prime is 31434020281. The next prime is 31434020333. The reversal of 31434020315 is 51302043413.

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 31434020315 - 230 = 30360278491 is a prime.

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, 108393029 + ... + 108393318.

It is an arithmetic number, because the mean of its divisors is an integer number (4877692830).

Almost surely, 231434020315 is an apocalyptic number.

31434020315 is a deficient number, since it is larger than the sum of its proper divisors (7587522325).

31434020315 is a wasteful number, since it uses less digits than its factorization.

31434020315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216786381.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31434020315 its reverse (51302043413), we get a palindrome (82736063728).

The spelling of 31434020315 in words is "thirty-one billion, four hundred thirty-four million, twenty thousand, three hundred fifteen".

Divisors: 1 5 29 145 216786347 1083931735 6286804063 31434020315