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2137872529 = 13199982267
BaseRepresentation
bin111111101101101…
…0101100010010001
312111222210011210001
41333123111202101
513334243410104
6552050010001
7103656421342
oct17733254221
95458704701
102137872529
119a7856301
124b7b76901
13280bbb240
14163d080c9
15c7a48aa4
hex7f6d5891

2137872529 has 8 divisors (see below), whose sum is σ = 2303504000. Its totient is φ = 1972409616.

The previous prime is 2137872523. The next prime is 2137872577. The reversal of 2137872529 is 9252787312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2137872529 - 25 = 2137872497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137872523) 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, 15147 + ... + 67120.

It is an arithmetic number, because the mean of its divisors is an integer number (287938000).

Almost surely, 22137872529 is an apocalyptic number.

It is an amenable number.

2137872529 is a deficient number, since it is larger than the sum of its proper divisors (165631471).

2137872529 is a wasteful number, since it uses less digits than its factorization.

2137872529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84279.

The product of its digits is 423360, while the sum is 46.

The square root of 2137872529 is about 46237.1336589975. The cubic root of 2137872529 is about 1288.2315629289.

The spelling of 2137872529 in words is "two billion, one hundred thirty-seven million, eight hundred seventy-two thousand, five hundred twenty-nine".

Divisors: 1 13 1999 25987 82267 1069471 164451733 2137872529