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31014085 = 56202817
BaseRepresentation
bin111011001001…
…1110011000101
32011100200022211
41312103303011
530414422320
63024423421
7524421034
oct166236305
964320284
1031014085
1116563383
12a477b71
13656b73b
14419471b
152ac955a
hex1d93cc5

31014085 has 4 divisors (see below), whose sum is σ = 37216908. Its totient is φ = 24811264.

The previous prime is 31014083. The next prime is 31014121. The reversal of 31014085 is 58041013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11068929 + 19945156 = 3327^2 + 4466^2 .

It is a cyclic number.

It is not a de Polignac number, because 31014085 - 21 = 31014083 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 (31014083) 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, 3101404 + ... + 3101413.

It is an arithmetic number, because the mean of its divisors is an integer number (9304227).

Almost surely, 231014085 is an apocalyptic number.

It is an amenable number.

31014085 is a deficient number, since it is larger than the sum of its proper divisors (6202823).

31014085 is an equidigital number, since it uses as much as digits as its factorization.

31014085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202822.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 31014085 is about 5569.0290895272. The cubic root of 31014085 is about 314.1856347520.

Adding to 31014085 its reverse (58041013), we get a palindrome (89055098).

The spelling of 31014085 in words is "thirty-one million, fourteen thousand, eighty-five".

Divisors: 1 5 6202817 31014085