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10388762969 = 131734619281
BaseRepresentation
bin10011010110011011…
…11111000101011001
3222211000021211122212
421223031333011121
5132234010403334
64434511124505
7515305012454
oct115315770531
928730254585
1010388762969
114451205422
12201b213735
13c973c6130
14707a4049b
1540c0a1ece
hex26b37f159

10388762969 has 8 divisors (see below), whose sum is σ = 11252570952. Its totient is φ = 9534193920.

The previous prime is 10388762959. The next prime is 10388763013. The reversal of 10388762969 is 96926788301.

It can be written as a sum of positive squares in 4 ways, for example, as 2182758400 + 8206004569 = 46720^2 + 90587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10388762969 is a prime.

It is a super-2 number, since 2×103887629692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10388762959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307392 + ... + 2311889.

It is an arithmetic number, because the mean of its divisors is an integer number (1406571369).

Almost surely, 210388762969 is an apocalyptic number.

It is an amenable number.

10388762969 is a deficient number, since it is larger than the sum of its proper divisors (863807983).

10388762969 is a wasteful number, since it uses less digits than its factorization.

10388762969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619467.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 10388762969 in words is "ten billion, three hundred eighty-eight million, seven hundred sixty-two thousand, nine hundred sixty-nine".

Divisors: 1 13 173 2249 4619281 60050653 799135613 10388762969