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769063680 = 28335711172
BaseRepresentation
bin101101110101101…
…111101100000000
31222121010111001000
4231311233230000
53033340014210
6204151412000
725025635110
oct5565575400
91877114030
10769063680
11365130a20
12195684000
13c3440988
14741d5040
15477b5ac0
hex2dd6fb00

769063680 has 864 divisors, whose sum is σ = 3614446080. Its totient is φ = 150405120.

The previous prime is 769063651. The next prime is 769063723. The reversal of 769063680 is 86360967.

769063680 is a `hidden beast` number, since 7 + 6 + 9 + 0 + 636 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45239032 + ... + 45239048.

Almost surely, 2769063680 is an apocalyptic number.

769063680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769063680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807223040).

769063680 is an abundant number, since it is smaller than the sum of its proper divisors (2845382400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

769063680 is a wasteful number, since it uses less digits than its factorization.

769063680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 769063680 is about 27731.9974037212. The cubic root of 769063680 is about 916.1939801357.

The spelling of 769063680 in words is "seven hundred sixty-nine million, sixty-three thousand, six hundred eighty".