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768069810 = 23354169383
BaseRepresentation
bin101101110001111…
…101000010110010
31222112020222201000
4231301331002302
53033111213220
6204114222430
725014325404
oct5561750262
91875228630
10768069810
11364612242
12195284a16
13c31834a1
1474016b74
154766b390
hex2dc7d0b2

768069810 has 64 divisors (see below), whose sum is σ = 2098172160. Its totient is φ = 199820160.

The previous prime is 768069793. The next prime is 768069811. The reversal of 768069810 is 18960867.

It is a happy number.

It is a super-2 number, since 2×7680698102 = 1179862466066872200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (768069811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23622 + ... + 45761.

It is an arithmetic number, because the mean of its divisors is an integer number (32783940).

Almost surely, 2768069810 is an apocalyptic number.

768069810 is an abundant number, since it is smaller than the sum of its proper divisors (1330102350).

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

768069810 is a wasteful number, since it uses less digits than its factorization.

768069810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69440 (or 69434 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 768069810 is about 27714.0724181777. The cubic root of 768069810 is about 915.7991405983.

The spelling of 768069810 in words is "seven hundred sixty-eight million, sixty-nine thousand, eight hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 41 45 54 82 90 123 135 205 246 270 369 410 615 738 1107 1230 1845 2214 3690 5535 11070 69383 138766 208149 346915 416298 624447 693830 1040745 1248894 1873341 2081490 2844703 3122235 3746682 5689406 6244470 8534109 9366705 14223515 17068218 18733410 25602327 28447030 42670545 51204654 76806981 85341090 128011635 153613962 256023270 384034905 768069810