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31502403053 = 112920998047
BaseRepresentation
bin11101010101101100…
…001000010111101101
310000022110022212220122
4131111230020113231
51004004103344203
622245541454325
72163442002452
oct352554102755
9100273285818
1031502403053
11123a6315750
1261321113a5
132c807190a4
14174bbb5829
15c4599a538
hex755b085ed

31502403053 has 8 divisors (see below), whose sum is σ = 34367784960. Its totient is φ = 28637275680.

The previous prime is 31502403041. The next prime is 31502403073. The reversal of 31502403053 is 35030420513.

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 31502403053 - 28 = 31502402797 is a prime.

It is a super-2 number, since 2×315024030532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31502403073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272276 + ... + 370322.

It is an arithmetic number, because the mean of its divisors is an integer number (4295973120).

Almost surely, 231502403053 is an apocalyptic number.

It is an amenable number.

31502403053 is a deficient number, since it is larger than the sum of its proper divisors (2865381907).

31502403053 is a wasteful number, since it uses less digits than its factorization.

31502403053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127267.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 31502403053 its reverse (35030420513), we get a palindrome (66532823566).

The spelling of 31502403053 in words is "thirty-one billion, five hundred two million, four hundred three thousand, fifty-three".

Divisors: 1 11 29209 98047 321299 1078517 2863854823 31502403053