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680792744 = 231747731459
BaseRepresentation
bin101000100101000…
…001001010101000
31202110000212002002
4220211001022220
52343240331434
6151315430132
722604433332
oct5045011250
91673025062
10680792744
1131a320735
1216bbb5348
13ab075a58
14665b8452
153eb7b57e
hex289412a8

680792744 has 64 divisors (see below), whose sum is σ = 1400198400. Its totient is φ = 309049344.

The previous prime is 680792737. The next prime is 680792747. The reversal of 680792744 is 447297086.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (680792747) 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, 465887 + ... + 467345.

It is an arithmetic number, because the mean of its divisors is an integer number (21878100).

Almost surely, 2680792744 is an apocalyptic number.

It is an amenable number.

680792744 is an abundant number, since it is smaller than the sum of its proper divisors (719405656).

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

680792744 is a wasteful number, since it uses less digits than its factorization.

680792744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 680792744 is about 26092.0053656288. The cubic root of 680792744 is about 879.7075233267.

The spelling of 680792744 in words is "six hundred eighty million, seven hundred ninety-two thousand, seven hundred forty-four".

Divisors: 1 2 4 8 17 34 47 68 73 94 136 146 188 292 376 584 799 1241 1459 1598 2482 2918 3196 3431 4964 5836 6392 6862 9928 11672 13724 24803 27448 49606 58327 68573 99212 106507 116654 137146 198424 213014 233308 274292 426028 466616 548584 852056 1165741 1810619 2331482 3621238 4662964 5005829 7242476 9325928 10011658 14484952 20023316 40046632 85099093 170198186 340396372 680792744