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680625038870 = 25750365929333
BaseRepresentation
bin10011110011110000110…
…10011110011000010110
32102001210221002101121222
421321320122132120112
542122410002220440
61240401432410342
7100113344242250
oct11717032363026
92361727071558
10680625038870
112427190aa627
12abaabb469b2
134c24b4169ba
1424d2a042cd0
1512a881532b5
hex9e7869e616

680625038870 has 64 divisors (see below), whose sum is σ = 1405103293440. Its totient is φ = 232531893888.

The previous prime is 680625038861. The next prime is 680625038897. The reversal of 680625038870 is 78830526086.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23188724 + ... + 23218056.

It is an arithmetic number, because the mean of its divisors is an integer number (21954738960).

Almost surely, 2680625038870 is an apocalyptic number.

680625038870 is an abundant number, since it is smaller than the sum of its proper divisors (724478254570).

680625038870 is a wasteful number, since it uses less digits than its factorization.

680625038870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30509.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 680625038870 in words is "six hundred eighty billion, six hundred twenty-five million, thirty-eight thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 503 659 1006 1318 2515 3295 3521 4613 5030 6590 7042 9226 17605 23065 29333 35210 46130 58666 146665 205331 293330 331477 410662 662954 1026655 1657385 2053310 2320339 3314770 4640678 11601695 14754499 19330447 23203390 29508998 38660894 73772495 96652235 103281493 135313129 147544990 193304470 206562986 270626258 516407465 676565645 1032814930 1353131290 9723214841 19446429682 48616074205 68062503887 97232148410 136125007774 340312519435 680625038870