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690011732769 = 31743314642833
BaseRepresentation
bin10100000101001111110…
…01110111101100100001
32102222001002210211221120
422002213321313230201
542301121000422034
61244553110042453
7100565063645622
oct12024771675441
92388032724846
10690011732769
112466a56a8697
12b188b649429
13500b6029c48
142557a957a49
1512e37265c49
hexa0a7e77b21

690011732769 has 16 divisors (see below), whose sum is σ = 996788498112. Its totient is φ = 422879966208.

The previous prime is 690011732747. The next prime is 690011732777. The reversal of 690011732769 is 967237110096.

It is not a de Polignac number, because 690011732769 - 28 = 690011732513 is a prime.

It is a super-2 number, since 2×6900117327692 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (690011732789) 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, 157319224 + ... + 157323609.

It is an arithmetic number, because the mean of its divisors is an integer number (62299281132).

Almost surely, 2690011732769 is an apocalyptic number.

It is an amenable number.

690011732769 is a deficient number, since it is larger than the sum of its proper divisors (306776765343).

690011732769 is a wasteful number, since it uses less digits than its factorization.

690011732769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314642896.

The product of its (nonzero) digits is 857304, while the sum is 51.

The spelling of 690011732769 in words is "six hundred ninety billion, eleven million, seven hundred thirty-two thousand, seven hundred sixty-nine".

Divisors: 1 3 17 43 51 129 731 2193 314642833 943928499 5348928161 13529641819 16046784483 40588925457 230003910923 690011732769