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2139425214 = 231720974757
BaseRepresentation
bin111111110000101…
…0000100110111110
312112002201001122220
41333201100212332
513340143101324
6552143150210
7104005546203
oct17741204676
95462631586
102139425214
119a8716913
124b85a5366
13281312ba4
141641cdcaa
15c7c53b79
hex7f8509be

2139425214 has 16 divisors (see below), whose sum is σ = 4530547728. Its totient is φ = 671192192.

The previous prime is 2139425191. The next prime is 2139425219. The reversal of 2139425214 is 4125249312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139425219) 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, 10487277 + ... + 10487480.

It is an arithmetic number, because the mean of its divisors is an integer number (283159233).

Almost surely, 22139425214 is an apocalyptic number.

2139425214 is an abundant number, since it is smaller than the sum of its proper divisors (2391122514).

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

2139425214 is a wasteful number, since it uses less digits than its factorization.

2139425214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20974779.

The product of its digits is 17280, while the sum is 33.

The square root of 2139425214 is about 46253.9210662188. The cubic root of 2139425214 is about 1288.5433579113.

The spelling of 2139425214 in words is "two billion, one hundred thirty-nine million, four hundred twenty-five thousand, two hundred fourteen".

Divisors: 1 2 3 6 17 34 51 102 20974757 41949514 62924271 125848542 356570869 713141738 1069712607 2139425214