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331012033031 = 19376152314759
BaseRepresentation
bin1001101000100011101…
…10101100101000000111
31011122101210112112110002
410310101312230220013
520410403040024111
6412022000351515
732625533566661
oct4642166545007
91148353475402
10331012033031
11118421732769
125419b31559b
13252a2a84c04
1412041b4b531
15892509463b
hex4d11daca07

331012033031 has 32 divisors (see below), whose sum is σ = 364437388800. Its totient is φ = 299518922880.

The previous prime is 331012033013. The next prime is 331012033039. The reversal of 331012033031 is 130330210133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-331012033031 is a prime.

It is a super-2 number, since 2×3310120330312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331012032994 and 331012033012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331012033039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22420430 + ... + 22435188.

It is an arithmetic number, because the mean of its divisors is an integer number (11388668400).

Almost surely, 2331012033031 is an apocalyptic number.

331012033031 is a deficient number, since it is larger than the sum of its proper divisors (33425355769).

331012033031 is a wasteful number, since it uses less digits than its factorization.

331012033031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 331012033031 its reverse (130330210133), we get a palindrome (461342243164).

The spelling of 331012033031 in words is "three hundred thirty-one billion, twelve million, thirty-three thousand, thirty-one".

Divisors: 1 19 37 61 523 703 1159 2257 9937 14759 19351 31903 42883 280421 367669 546083 606157 900299 1180411 7718957 10375577 17105681 22427809 33311063 146660183 285601409 470856377 632910197 5426426771 8946271163 17421685949 331012033031