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31361077 = 1119150053
BaseRepresentation
bin111011110100…
…0100000110101
32012000022022101
41313220200311
531012023302
63040102101
7530364466
oct167504065
965008271
1031361077
1116780050
12a604931
136660667
144244d6d
152b47287
hex1de8835

31361077 has 8 divisors (see below), whose sum is σ = 36012960. Its totient is φ = 27009360.

The previous prime is 31361063. The next prime is 31361111. The reversal of 31361077 is 77016313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31361077 - 27 = 31360949 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 (31361027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74818 + ... + 75235.

It is an arithmetic number, because the mean of its divisors is an integer number (4501620).

Almost surely, 231361077 is an apocalyptic number.

It is an amenable number.

31361077 is a deficient number, since it is larger than the sum of its proper divisors (4651883).

31361077 is a wasteful number, since it uses less digits than its factorization.

31361077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150083.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 31361077 is about 5600.0961598887. The cubic root of 31361077 is about 315.3530165096.

The spelling of 31361077 in words is "thirty-one million, three hundred sixty-one thousand, seventy-seven".

Divisors: 1 11 19 209 150053 1650583 2851007 31361077