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10138139 = 112961521
BaseRepresentation
bin100110101011…
…001000011011
3201002001220122
4212223020123
510043410024
61001143455
7152113154
oct46531033
921061818
1010138139
1157a4a30
12348ab8b
13213c6cb
1414bc92b
15d53d5e
hex9ab21b

10138139 has 16 divisors (see below), whose sum is σ = 11651040. Its totient is φ = 8736000.

The previous prime is 10138129. The next prime is 10138151. The reversal of 10138139 is 93183101.

10138139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10138139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10138129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19199 + ... + 19719.

It is an arithmetic number, because the mean of its divisors is an integer number (728190).

Almost surely, 210138139 is an apocalyptic number.

10138139 is a deficient number, since it is larger than the sum of its proper divisors (1512901).

10138139 is a wasteful number, since it uses less digits than its factorization.

10138139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 10138139 is about 3184.0444406446. The cubic root of 10138139 is about 216.4309739467.

The spelling of 10138139 in words is "ten million, one hundred thirty-eight thousand, one hundred thirty-nine".

Divisors: 1 11 29 61 319 521 671 1769 5731 15109 19459 31781 166199 349591 921649 10138139