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1307337831 = 321016314293
BaseRepresentation
bin100110111101100…
…0110010001100111
310101002222122100200
41031323012101213
510134134302311
6333420441543
744253121362
oct11573062147
93332878320
101307337831
11610a5a298
123059a92b3
1317ab06ba7
14c58b10d9
1579b8e556
hex4dec6467

1307337831 has 12 divisors (see below), whose sum is σ = 1888694808. Its totient is φ = 871411824.

The previous prime is 1307337827. The next prime is 1307337851. The reversal of 1307337831 is 1387337031.

It is not a de Polignac number, because 1307337831 - 22 = 1307337827 is a prime.

It is a super-2 number, since 2×13073378312 = 3418264408727569122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307337851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84321 + ... + 98613.

It is an arithmetic number, because the mean of its divisors is an integer number (157391234).

Almost surely, 21307337831 is an apocalyptic number.

1307337831 is a deficient number, since it is larger than the sum of its proper divisors (581356977).

1307337831 is a wasteful number, since it uses less digits than its factorization.

1307337831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24462 (or 24459 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1307337831 is about 36157.1269738070. The cubic root of 1307337831 is about 1093.4424819667.

The spelling of 1307337831 in words is "one billion, three hundred seven million, three hundred thirty-seven thousand, eight hundred thirty-one".

Divisors: 1 3 9 10163 14293 30489 42879 91467 128637 145259759 435779277 1307337831