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2140962685 = 51573378093
BaseRepresentation
bin111111110011100…
…0111111101111101
312112012121011200021
41333213013331331
513341041301220
6552240132141
7104024611501
oct17747077575
95465534607
102140962685
119a9576a54
124b9007051
13281730934
141644b0301
15c7e594aa
hex7f9c7f7d

2140962685 has 16 divisors (see below), whose sum is σ = 2593511856. Its totient is φ = 1696601088.

The previous prime is 2140962683. The next prime is 2140962697. The reversal of 2140962685 is 5862690412.

It can be written as a sum of positive squares in 8 ways, for example, as 222785476 + 1918177209 = 14926^2 + 43797^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140962685 - 21 = 2140962683 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 (2140962683) 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, 260499 + ... + 268591.

It is an arithmetic number, because the mean of its divisors is an integer number (162094491).

Almost surely, 22140962685 is an apocalyptic number.

It is an amenable number.

2140962685 is a deficient number, since it is larger than the sum of its proper divisors (452549171).

2140962685 is a wasteful number, since it uses less digits than its factorization.

2140962685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8592.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 2140962685 is about 46270.5379804471. The cubic root of 2140962685 is about 1288.8519491563.

The spelling of 2140962685 in words is "two billion, one hundred forty million, nine hundred sixty-two thousand, six hundred eighty-five".

Divisors: 1 5 157 337 785 1685 8093 40465 52909 264545 1270601 2727341 6353005 13636705 428192537 2140962685