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10235109909 = 39761956821
BaseRepresentation
bin10011000100000111…
…10110001000010101
3222102022011110021210
421202003312020111
5131430142004114
64411341532033
7511430666403
oct114203661025
928368143253
1010235109909
1143824a8622
121b97874019
13c7161856b
146d1484473
153ed850259
hex2620f6215

10235109909 has 16 divisors (see below), whose sum is σ = 13810018880. Its totient is φ = 6742033920.

The previous prime is 10235109889. The next prime is 10235109967. The reversal of 10235109909 is 90990153201.

It is not a de Polignac number, because 10235109909 - 213 = 10235101717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10235108909) 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, 151719 + ... + 208539.

It is an arithmetic number, because the mean of its divisors is an integer number (863126180).

Almost surely, 210235109909 is an apocalyptic number.

It is an amenable number.

10235109909 is a deficient number, since it is larger than the sum of its proper divisors (3574908971).

10235109909 is an equidigital number, since it uses as much as digits as its factorization.

10235109909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57540.

The product of its (nonzero) digits is 21870, while the sum is 39.

The spelling of 10235109909 in words is "ten billion, two hundred thirty-five million, one hundred nine thousand, nine hundred nine".

Divisors: 1 3 97 291 619 1857 56821 60043 170463 180129 5511637 16534911 35172199 105516597 3411703303 10235109909