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31350342053 = 1092294872579
BaseRepresentation
bin11101001100101000…
…000100000110100101
32222220212012101102202
4131030220010012211
51003201141421203
622222510344245
72156614340102
oct351450040645
988825171382
1031350342053
11123284a5aa8
1260ab1bb085
132c58078074
141735911aa9
15c37460388
hex74ca041a5

31350342053 has 16 divisors (see below), whose sum is σ = 31853712000. Its totient is φ = 30851606592.

The previous prime is 31350342047. The next prime is 31350342061. The reversal of 31350342053 is 35024305313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31350342053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31350342043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12154718 + ... + 12157296.

It is an arithmetic number, because the mean of its divisors is an integer number (1990857000).

Almost surely, 231350342053 is an apocalyptic number.

It is an amenable number.

31350342053 is a deficient number, since it is larger than the sum of its proper divisors (503369947).

31350342053 is a wasteful number, since it uses less digits than its factorization.

31350342053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 31350342053 its reverse (35024305313), we get a palindrome (66374647366).

The spelling of 31350342053 in words is "thirty-one billion, three hundred fifty million, three hundred forty-two thousand, fifty-three".

Divisors: 1 109 229 487 2579 24961 53083 111523 281111 590591 1255973 12156007 64374419 136901057 287617817 31350342053