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6985960680 = 233558216339
BaseRepresentation
bin1101000000110010…
…10100110011101000
3200000212022120110110
412200121110303220
5103301401220210
63113113214320
7335055454206
oct64031246350
920025276413
106985960680
112a65435726
12142b7013a0
1387442b95a
144a3b44076
152ad494420
hex1a0654ce8

6985960680 has 32 divisors (see below), whose sum is σ = 20957882400. Its totient is φ = 1862922816.

The previous prime is 6985960649. The next prime is 6985960697. The reversal of 6985960680 is 860695896.

It is a self number, because there is not a number n which added to its sum of digits gives 6985960680.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29108050 + ... + 29108289.

It is an arithmetic number, because the mean of its divisors is an integer number (654933825).

Almost surely, 26985960680 is an apocalyptic number.

6985960680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6985960680 is an abundant number, since it is smaller than the sum of its proper divisors (13971921720).

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

6985960680 is a wasteful number, since it uses less digits than its factorization.

6985960680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58216353 (or 58216349 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The square root of 6985960680 is about 83582.0595582569. The cubic root of 6985960680 is about 1911.6514576534.

The spelling of 6985960680 in words is "six billion, nine hundred eighty-five million, nine hundred sixty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 58216339 116432678 174649017 232865356 291081695 349298034 465730712 582163390 698596068 873245085 1164326780 1397192136 1746490170 2328653560 3492980340 6985960680