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1679488664 = 237149201281
BaseRepresentation
bin110010000011010…
…1111011010011000
311100001020212022212
41210012233122120
511414422114124
6434353134252
756422263260
oct14406573230
94301225285
101679488664
11792033767
123aa55a388
13209c47499
1411d0a67a0
159c6a140e
hex641af698

1679488664 has 32 divisors (see below), whose sum is σ = 3623076000. Its totient is φ = 714946560.

The previous prime is 1679488639. The next prime is 1679488669. The reversal of 1679488664 is 4668849761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679488669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92297 + ... + 108984.

It is an arithmetic number, because the mean of its divisors is an integer number (113221125).

Almost surely, 21679488664 is an apocalyptic number.

1679488664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1679488664 is an abundant number, since it is smaller than the sum of its proper divisors (1943587336).

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

1679488664 is a wasteful number, since it uses less digits than its factorization.

1679488664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201443 (or 201439 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 59.

The square root of 1679488664 is about 40981.5649286359. The cubic root of 1679488664 is about 1188.6637695333.

The spelling of 1679488664 in words is "one billion, six hundred seventy-nine million, four hundred eighty-eight thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 149 298 596 1043 1192 2086 4172 8344 201281 402562 805124 1408967 1610248 2817934 5635868 11271736 29990869 59981738 119963476 209936083 239926952 419872166 839744332 1679488664