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10260978513 = 33420326171
BaseRepresentation
bin10011000111001101…
…00001101101010001
3222111002211201100020
421203212201231101
5132003302303023
64414104214053
7512163610152
oct114346415521
928432751306
1010260978513
114396067035
121ba446a329
13c76aa4c26
146d4a99929
15400c5ede3
hex2639a1b51

10260978513 has 4 divisors (see below), whose sum is σ = 13681304688. Its totient is φ = 6840652340.

The previous prime is 10260978407. The next prime is 10260978521. The reversal of 10260978513 is 31587906201.

10260978513 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 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 10260978513 - 29 = 10260978001 is a prime.

It is a super-3 number, since 3×102609785133 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (10260978583) 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, 1710163083 + ... + 1710163088.

It is an arithmetic number, because the mean of its divisors is an integer number (3420326172).

Almost surely, 210260978513 is an apocalyptic number.

It is an amenable number.

10260978513 is a deficient number, since it is larger than the sum of its proper divisors (3420326175).

10260978513 is an equidigital number, since it uses as much as digits as its factorization.

10260978513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420326174.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 10260978513 in words is "ten billion, two hundred sixty million, nine hundred seventy-eight thousand, five hundred thirteen".

Divisors: 1 3 3420326171 10260978513