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2139095010 = 235135484859
BaseRepresentation
bin111111101111111…
…1111111111100010
312112002002021201010
41333133333333202
513340102020020
6552132121350
7104003002413
oct17737777742
95462067633
102139095010
119a8510818
124b8466256
132812287c0
1416414580a
15c7bdade0
hex7f7fffe2

2139095010 has 32 divisors (see below), whose sum is σ = 5528738880. Its totient is φ = 526546368.

The previous prime is 2139094963. The next prime is 2139095011. The reversal of 2139095010 is 105909312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2139095011) 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, 2742040 + ... + 2742819.

It is an arithmetic number, because the mean of its divisors is an integer number (172773090).

Almost surely, 22139095010 is an apocalyptic number.

2139095010 is an abundant number, since it is smaller than the sum of its proper divisors (3389643870).

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

2139095010 is a wasteful number, since it uses less digits than its factorization.

2139095010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484882.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 2139095010 is about 46250.3514581241. The cubic root of 2139095010 is about 1288.4770622135.

The spelling of 2139095010 in words is "two billion, one hundred thirty-nine million, ninety-five thousand, ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 5484859 10969718 16454577 27424295 32909154 54848590 71303167 82272885 142606334 164545770 213909501 356515835 427819002 713031670 1069547505 2139095010