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2139130895 = 511169322973
BaseRepresentation
bin111111110000000…
…1000110000001111
312112002011002221012
41333200020300033
513340104142040
6552132555435
7104003212136
oct17740106017
95462132835
102139130895
119a8535780
124b8482b7b
1328123bc35
1416415491d
15c7be6865
hex7f808c0f

2139130895 has 16 divisors (see below), whose sum is σ = 2802092832. Its totient is φ = 1554744960.

The previous prime is 2139130849. The next prime is 2139130897. The reversal of 2139130895 is 5980319312.

It is not a de Polignac number, because 2139130895 - 216 = 2139065359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139130897) 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, 81629 + ... + 104601.

It is an arithmetic number, because the mean of its divisors is an integer number (175130802).

Almost surely, 22139130895 is an apocalyptic number.

2139130895 is a deficient number, since it is larger than the sum of its proper divisors (662961937).

2139130895 is a wasteful number, since it uses less digits than its factorization.

2139130895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24682.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 2139130895 is about 46250.7393994950. The cubic root of 2139130895 is about 1288.4842672450.

The spelling of 2139130895 in words is "two billion, one hundred thirty-nine million, one hundred thirty thousand, eight hundred ninety-five".

Divisors: 1 5 11 55 1693 8465 18623 22973 93115 114865 252703 1263515 38893289 194466445 427826179 2139130895