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31830242049 = 3273463104639
BaseRepresentation
bin11101101001001110…
…101111001100000001
310001011022012211110200
4131221032233030001
51010142020221144
622342252315413
72204532410334
oct355116571401
9101138184420
1031830242049
1112554383a71
126203a72b69
133003613368
14177d55461b
15c64657c69
hex7693af301

31830242049 has 24 divisors (see below), whose sum is σ = 46707947520. Its totient is φ = 20884070592.

The previous prime is 31830242039. The next prime is 31830242051. The reversal of 31830242049 is 94024203813.

It is not a de Polignac number, because 31830242049 - 216 = 31830176513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31830242039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251872 + ... + 356510.

It is an arithmetic number, because the mean of its divisors is an integer number (1946164480).

Almost surely, 231830242049 is an apocalyptic number.

It is an amenable number.

31830242049 is a deficient number, since it is larger than the sum of its proper divisors (14877705471).

31830242049 is a wasteful number, since it uses less digits than its factorization.

31830242049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105181 (or 105178 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 31830242049 in words is "thirty-one billion, eight hundred thirty million, two hundred forty-two thousand, forty-nine".

Divisors: 1 3 9 73 219 463 657 1389 4167 33799 101397 104639 304191 313917 941751 7638647 22915941 48447857 68747823 145343571 436030713 3536693561 10610080683 31830242049