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10206770765 = 511318065081
BaseRepresentation
bin10011000000101111…
…01111011001001101
3222100022211200021212
421200113233121031
5131400413131030
64404450304205
7510635056112
oct114027573115
928308750255
1010206770765
114368501a44
121b8a288065
13c687a5539
146cb7c8909
153eb103595
hex2605ef64d

10206770765 has 8 divisors (see below), whose sum is σ = 12356516088. Its totient is φ = 8093155840.

The previous prime is 10206770747. The next prime is 10206770773. The reversal of 10206770765 is 56707760201.

It can be written as a sum of positive squares in 4 ways, for example, as 330585124 + 9876185641 = 18182^2 + 99379^2 .

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

It is not a de Polignac number, because 10206770765 - 26 = 10206770701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9031976 + ... + 9033105.

It is an arithmetic number, because the mean of its divisors is an integer number (1544564511).

Almost surely, 210206770765 is an apocalyptic number.

It is an amenable number.

10206770765 is a deficient number, since it is larger than the sum of its proper divisors (2149745323).

10206770765 is a wasteful number, since it uses less digits than its factorization.

10206770765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18065199.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 10206770765 in words is "ten billion, two hundred six million, seven hundred seventy thousand, seven hundred sixty-five".

Divisors: 1 5 113 565 18065081 90325405 2041354153 10206770765