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10138877 = 71448411
BaseRepresentation
bin100110101011…
…010011111101
3201002002220222
4212223103331
510043421002
61001151125
7152115260
oct46532375
921062828
1010138877
1157a5541
12348b4a5
13213cb48
1414bccd7
15d541a2
hex9ab4fd

10138877 has 4 divisors (see below), whose sum is σ = 11587296. Its totient is φ = 8690460.

The previous prime is 10138873. The next prime is 10138889. The reversal of 10138877 is 77883101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10138877 - 22 = 10138873 is a prime.

It is a super-2 number, since 2×101388772 = 205593653642258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10138873) 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, 724199 + ... + 724212.

It is an arithmetic number, because the mean of its divisors is an integer number (2896824).

Almost surely, 210138877 is an apocalyptic number.

It is an amenable number.

10138877 is a deficient number, since it is larger than the sum of its proper divisors (1448419).

10138877 is an equidigital number, since it uses as much as digits as its factorization.

10138877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448418.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 10138877 is about 3184.1603288779. The cubic root of 10138877 is about 216.4362254754.

The spelling of 10138877 in words is "ten million, one hundred thirty-eight thousand, eight hundred seventy-seven".

Divisors: 1 7 1448411 10138877