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10172631 = 37484411
BaseRepresentation
bin100110110011…
…100011010111
3201010211020010
4212303203113
510101011011
61002011303
7152315550
oct46634327
921124203
1010172631
115818937
1234a6b33
132152311
1414cb327
15d5e1a6
hex9b38d7

10172631 has 8 divisors (see below), whose sum is σ = 15501184. Its totient is φ = 5812920.

The previous prime is 10172621. The next prime is 10172641. The reversal of 10172631 is 13627101.

It is an interprime number because it is at equal distance from previous prime (10172621) and next prime (10172641).

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

It is not a de Polignac number, because 10172631 - 213 = 10164439 is a prime.

It is a super-2 number, since 2×101726312 = 206964842924322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 484411 = 10172631 / (1 + 0 + 1 + 7 + 2 + 6 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10172598 and 10172607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10172621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242185 + ... + 242226.

It is an arithmetic number, because the mean of its divisors is an integer number (1937648).

Almost surely, 210172631 is an apocalyptic number.

10172631 is a deficient number, since it is larger than the sum of its proper divisors (5328553).

10172631 is an equidigital number, since it uses as much as digits as its factorization.

10172631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484421.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 10172631 is about 3189.4562232456. The cubic root of 10172631 is about 216.6761434382.

Adding to 10172631 its reverse (13627101), we get a palindrome (23799732).

The spelling of 10172631 in words is "ten million, one hundred seventy-two thousand, six hundred thirty-one".

Divisors: 1 3 7 21 484411 1453233 3390877 10172631