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31094957 = 50361819
BaseRepresentation
bin111011010011…
…1100010101101
32011111210021002
41312213202231
530430014312
63030250045
7525205565
oct166474255
964453232
1031094957
1116609113
12a4b6925
1365994aa
1441b5da5
152ae34c2
hex1da78ad

31094957 has 4 divisors (see below), whose sum is σ = 31157280. Its totient is φ = 31032636.

The previous prime is 31094951. The next prime is 31094969. The reversal of 31094957 is 75949013.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 31094957 - 214 = 31078573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31094957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31094951) 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, 30407 + ... + 31412.

It is an arithmetic number, because the mean of its divisors is an integer number (7789320).

Almost surely, 231094957 is an apocalyptic number.

It is an amenable number.

31094957 is a deficient number, since it is larger than the sum of its proper divisors (62323).

31094957 is an equidigital number, since it uses as much as digits as its factorization.

31094957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62322.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 31094957 is about 5576.2852330203. The cubic root of 31094957 is about 314.4584867733.

The spelling of 31094957 in words is "thirty-one million, ninety-four thousand, nine hundred fifty-seven".

Divisors: 1 503 61819 31094957