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768411864 = 233211970217
BaseRepresentation
bin101101110011010…
…000100011011000
31222112220100220200
4231303100203120
53033203134424
6204125422200
725020251553
oct5563204330
91875810820
10768411864
11364826230
1219540a960
13c327309c
14740a569a
15476d78c9
hex2dcd08d8

768411864 has 48 divisors (see below), whose sum is σ = 2270310120. Its totient is φ = 232851840.

The previous prime is 768411863. The next prime is 768411881. The reversal of 768411864 is 468114867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768411863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484317 + ... + 485900.

Almost surely, 2768411864 is an apocalyptic number.

It is an amenable number.

768411864 is an abundant number, since it is smaller than the sum of its proper divisors (1501898256).

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

768411864 is a wasteful number, since it uses less digits than its factorization.

768411864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970240 (or 970233 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 768411864 is about 27720.2428560790. The cubic root of 768411864 is about 915.9350684636.

The spelling of 768411864 in words is "seven hundred sixty-eight million, four hundred eleven thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 970217 1940434 2910651 3880868 5821302 7761736 8731953 10672387 11642604 17463906 21344774 23285208 32017161 34927812 42689548 64034322 69855624 85379096 96051483 128068644 192102966 256137288 384205932 768411864