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961000680 = 233510973471
BaseRepresentation
bin111001010001111…
…011010011101000
32110222021220002210
4321101323103220
53432004010210
6235205325120
732546241153
oct7121732350
92428256083
10961000680
11453507042
12229a067a0
13124133c73
14918b8c9a
155957ae20
hex3947b4e8

961000680 has 64 divisors (see below), whose sum is σ = 2909491200. Its totient is φ = 253912320.

The previous prime is 961000669. The next prime is 961000699. The reversal of 961000680 is 86000169.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23656 + ... + 49815.

It is an arithmetic number, because the mean of its divisors is an integer number (45460800).

Almost surely, 2961000680 is an apocalyptic number.

It is an amenable number.

961000680 is an abundant number, since it is smaller than the sum of its proper divisors (1948490520).

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

961000680 is a wasteful number, since it uses less digits than its factorization.

961000680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73594 (or 73590 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 961000680 is about 31000.0109677400. The cubic root of 961000680 is about 986.8274730803.

The spelling of 961000680 in words is "nine hundred sixty-one million, six hundred eighty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 109 120 218 327 436 545 654 872 1090 1308 1635 2180 2616 3270 4360 6540 13080 73471 146942 220413 293884 367355 440826 587768 734710 881652 1102065 1469420 1763304 2204130 2938840 4408260 8008339 8816520 16016678 24025017 32033356 40041695 48050034 64066712 80083390 96100068 120125085 160166780 192200136 240250170 320333560 480500340 961000680