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31339101 = 310446367
BaseRepresentation
bin111011110001…
…1001001011101
32011222012011110
41313203021131
531010322401
63035412233
7530243433
oct167431135
964865143
1031339101
1116765592
12a5b4079
136653661
14423ad53
152b409d6
hex1de325d

31339101 has 4 divisors (see below), whose sum is σ = 41785472. Its totient is φ = 20892732.

The previous prime is 31339097. The next prime is 31339103. The reversal of 31339101 is 10193313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31339101 - 22 = 31339097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31339103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5223181 + ... + 5223186.

It is an arithmetic number, because the mean of its divisors is an integer number (10446368).

Almost surely, 231339101 is an apocalyptic number.

It is an amenable number.

31339101 is a deficient number, since it is larger than the sum of its proper divisors (10446371).

31339101 is a wasteful number, since it uses less digits than its factorization.

31339101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10446370.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 31339101 is about 5598.1337068705. The cubic root of 31339101 is about 315.2793390093.

The spelling of 31339101 in words is "thirty-one million, three hundred thirty-nine thousand, one hundred one".

Divisors: 1 3 10446367 31339101