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31417130 = 253141713
BaseRepresentation
bin111011111011…
…0001100101010
32012010011012102
41313312030222
531020322010
63041213402
7531020063
oct167661452
965104172
1031417130
1116809178
12a631262
136680024
14425b56a
152b58ba5
hex1df632a

31417130 has 8 divisors (see below), whose sum is σ = 56550852. Its totient is φ = 12566848.

The previous prime is 31417129. The next prime is 31417151. The reversal of 31417130 is 3171413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31058329 + 358801 = 5573^2 + 599^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570847 + ... + 1570866.

Almost surely, 231417130 is an apocalyptic number.

31417130 is a deficient number, since it is larger than the sum of its proper divisors (25133722).

31417130 is a wasteful number, since it uses less digits than its factorization.

31417130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141720.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 31417130 is about 5605.0985718362. The cubic root of 31417130 is about 315.5407860151.

Adding to 31417130 its reverse (3171413), we get a palindrome (34588543).

The spelling of 31417130 in words is "thirty-one million, four hundred seventeen thousand, one hundred thirty".

Divisors: 1 2 5 10 3141713 6283426 15708565 31417130