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31411701 = 3222915241
BaseRepresentation
bin111011111010…
…0110111110101
32012002212202100
41313310313311
531020133301
63041132313
7530665206
oct167646765
965085670
1031411701
1116805092
12a62a099
13667a709
1442595ad
152b57286
hex1df4df5

31411701 has 12 divisors (see below), whose sum is σ = 45573580. Its totient is φ = 20848320.

The previous prime is 31411697. The next prime is 31411703. The reversal of 31411701 is 10711413.

It can be written as a sum of positive squares in 2 ways, for example, as 27311076 + 4100625 = 5226^2 + 2025^2 .

It is not a de Polignac number, because 31411701 - 22 = 31411697 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 (31411703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5560 + ... + 9681.

Almost surely, 231411701 is an apocalyptic number.

It is an amenable number.

31411701 is a deficient number, since it is larger than the sum of its proper divisors (14161879).

31411701 is a wasteful number, since it uses less digits than its factorization.

31411701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15476 (or 15473 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 31411701 is about 5604.6142596971. The cubic root of 31411701 is about 315.5226094173.

The spelling of 31411701 in words is "thirty-one million, four hundred eleven thousand, seven hundred one".

Divisors: 1 3 9 229 687 2061 15241 45723 137169 3490189 10470567 31411701