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10131955 = 52026391
BaseRepresentation
bin100110101001…
…100111110011
3201001202102121
4212221213303
510043210310
61001055111
7152056141
oct46514763
921052377
1010131955
1157a0319
123487497
132139952
1414ba591
15d520da
hex9a99f3

10131955 has 4 divisors (see below), whose sum is σ = 12158352. Its totient is φ = 8105560.

The previous prime is 10131943. The next prime is 10131971. The reversal of 10131955 is 55913101.

10131955 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55913101 = 211264991.

It is not a de Polignac number, because 10131955 - 25 = 10131923 is a prime.

It is a super-3 number, since 3×101319553 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

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, 1013191 + ... + 1013200.

It is an arithmetic number, because the mean of its divisors is an integer number (3039588).

Almost surely, 210131955 is an apocalyptic number.

10131955 is a deficient number, since it is larger than the sum of its proper divisors (2026397).

10131955 is an equidigital number, since it uses as much as digits as its factorization.

10131955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026396.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 10131955 is about 3183.0732005406. The cubic root of 10131955 is about 216.3869592491.

The spelling of 10131955 in words is "ten million, one hundred thirty-one thousand, nine hundred fifty-five".

Divisors: 1 5 2026391 10131955