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1679012285 = 59719717573
BaseRepresentation
bin110010000010011…
…1011000110111101
311100000100122212012
41210010323012331
511414311343120
6434335021005
756415240356
oct14404730675
94300318765
101679012285
11791838865
123aa36a765
13209b0b6c2
1411cdc0d2d
159c60a1c5
hex6413b1bd

1679012285 has 16 divisors (see below), whose sum is σ = 2046035376. Its totient is φ = 1322539008.

The previous prime is 1679012267. The next prime is 1679012287. The reversal of 1679012285 is 5822109761.

It can be written as a sum of positive squares in 8 ways, for example, as 173106649 + 1505905636 = 13157^2 + 38806^2 .

It is a cyclic number.

It is not a de Polignac number, because 1679012285 - 218 = 1678750141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679012287) 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, 86759 + ... + 104331.

It is an arithmetic number, because the mean of its divisors is an integer number (127877211).

Almost surely, 21679012285 is an apocalyptic number.

It is an amenable number.

1679012285 is a deficient number, since it is larger than the sum of its proper divisors (367023091).

1679012285 is a wasteful number, since it uses less digits than its factorization.

1679012285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17872.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1679012285 is about 40975.7524030981. The cubic root of 1679012285 is about 1188.5513726241.

The spelling of 1679012285 in words is "one billion, six hundred seventy-nine million, twelve thousand, two hundred eighty-five".

Divisors: 1 5 97 197 485 985 17573 19109 87865 95545 1704581 3461881 8522905 17309405 335802457 1679012285