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680355741 = 31337471487
BaseRepresentation
bin101000100011010…
…110011110011101
31202102012122121210
4220203112132131
52343132340431
6151302215033
722600633302
oct5043263635
91672178553
10680355741
1131a05237a
1216ba24479
13aac51b80
14665030a9
153eae1d46
hex288d679d

680355741 has 16 divisors (see below), whose sum is σ = 1003326464. Its totient is φ = 407363904.

The previous prime is 680355737. The next prime is 680355749. The reversal of 680355741 is 147553086.

It is not a de Polignac number, because 680355741 - 22 = 680355737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680355741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680355749) 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, 234301 + ... + 237186.

It is an arithmetic number, because the mean of its divisors is an integer number (62707904).

Almost surely, 2680355741 is an apocalyptic number.

It is an amenable number.

680355741 is a deficient number, since it is larger than the sum of its proper divisors (322970723).

680355741 is a wasteful number, since it uses less digits than its factorization.

680355741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471540.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 680355741 is about 26083.6297512444. The cubic root of 680355741 is about 879.5192540302.

The spelling of 680355741 in words is "six hundred eighty million, three hundred fifty-five thousand, seven hundred forty-one".

Divisors: 1 3 13 37 39 111 481 1443 471487 1414461 6129331 17445019 18387993 52335057 226785247 680355741