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26109012970 = 253298379159
BaseRepresentation
bin11000010100001101…
…111110101111101010
32111101120201021121101
4120110031332233222
5411432401403340
615554434432014
71613001643225
oct302415765752
974346637541
1026109012970
1110088947977
125087a3260a
132601221701
1413997905bc
15a2c238c9a
hex61437ebea

26109012970 has 16 divisors (see below), whose sum is σ = 46998241920. Its totient is φ = 10443156624.

The previous prime is 26109012931. The next prime is 26109013009. The reversal of 26109012970 is 7921090162.

It is an interprime number because it is at equal distance from previous prime (26109012931) and next prime (26109013009).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290251 + ... + 369409.

It is an arithmetic number, because the mean of its divisors is an integer number (2937390120).

Almost surely, 226109012970 is an apocalyptic number.

26109012970 is the 131932-nd pentagonal number.

26109012970 is a deficient number, since it is larger than the sum of its proper divisors (20889228950).

26109012970 is a wasteful number, since it uses less digits than its factorization.

26109012970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112149.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 26109012970 in words is "twenty-six billion, one hundred nine million, twelve thousand, nine hundred seventy".

Divisors: 1 2 5 10 32983 65966 79159 158318 164915 329830 395795 791590 2610901297 5221802594 13054506485 26109012970