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331044350031 = 33311392845417
BaseRepresentation
bin1001101000100111100…
…01111110100001001111
31011122111001100102001000
410310103301332201033
520410434323200111
6412025113151343
732626405355433
oct4642361764117
91148431312030
10331044350031
111184389a5a2a
12541aa0bb553
13252a968b6b5
14120461609c3
158927d29c56
hex4d13c7e84f

331044350031 has 32 divisors (see below), whose sum is σ = 509898905600. Its totient is φ = 212040400320.

The previous prime is 331044350027. The next prime is 331044350057. The reversal of 331044350031 is 130053440133.

It is not a de Polignac number, because 331044350031 - 22 = 331044350027 is a prime.

It is a super-2 number, since 2×3310443500312 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331044349977 and 331044350004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331044300031) 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, 1306366 + ... + 1539051.

It is an arithmetic number, because the mean of its divisors is an integer number (15934340800).

Almost surely, 2331044350031 is an apocalyptic number.

331044350031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331044350031 is a deficient number, since it is larger than the sum of its proper divisors (178854555569).

331044350031 is a wasteful number, since it uses less digits than its factorization.

331044350031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845596 (or 2845590 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 331044350031 its reverse (130053440133), we get a palindrome (461097790164).

The spelling of 331044350031 in words is "three hundred thirty-one billion, forty-four million, three hundred fifty thousand, thirty-one".

Divisors: 1 3 9 27 31 93 139 279 417 837 1251 3753 4309 12927 38781 116343 2845417 8536251 25608753 76826259 88207927 264623781 395512963 793871343 1186538889 2381614029 3559616667 10678850001 12260901853 36782705559 110348116677 331044350031