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42031131333 = 3191319559051
BaseRepresentation
bin100111001001010000…
…000010101011000101
311000111012222200212220
4213021100002223011
51142034432200313
631150413002553
73015366502332
oct471120025305
9130435880786
1042031131333
1116909529084
128190183459
133c6ab09819
14206a24b989
15115ee98823
hex9c9402ac5

42031131333 has 16 divisors (see below), whose sum is σ = 59035891200. Its totient is φ = 26525804400.

The previous prime is 42031131319. The next prime is 42031131349. The reversal of 42031131333 is 33313113024.

It is a happy number.

It is not a de Polignac number, because 42031131333 - 25 = 42031131301 is a prime.

It is a super-2 number, since 2×420311313332 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031131383) 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, 204343 + ... + 354708.

It is an arithmetic number, because the mean of its divisors is an integer number (3689743200).

Almost surely, 242031131333 is an apocalyptic number.

It is an amenable number.

42031131333 is a deficient number, since it is larger than the sum of its proper divisors (17004759867).

42031131333 is a wasteful number, since it uses less digits than its factorization.

42031131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560392.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 42031131333 its reverse (33313113024), we get a palindrome (75344244357).

The spelling of 42031131333 in words is "forty-two billion, thirty-one million, one hundred thirty-one thousand, three hundred thirty-three".

Divisors: 1 3 19 57 1319 3957 25061 75183 559051 1677153 10621969 31865907 737388269 2212164807 14010377111 42031131333