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26427875140 = 2253631336389
BaseRepresentation
bin11000100111001110…
…010101111101000100
32112012210201011021101
4120213032111331010
5413111014001030
620050225025444
71623623142442
oct304716257504
975183634241
1026427875140
1110231934827
125156785284
1326522c4a54
1413c9c73b92
15a4a2217ca
hex627395f44

26427875140 has 24 divisors (see below), whose sum is σ = 55501591320. Its totient is φ = 10570568448.

The previous prime is 26427875119. The next prime is 26427875167. The reversal of 26427875140 is 4157872462.

It can be written as a sum of positive squares in 4 ways, for example, as 4303097604 + 22124777536 = 65598^2 + 148744^2 .

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, 708066 + ... + 744454.

It is an arithmetic number, because the mean of its divisors is an integer number (2312566305).

Almost surely, 226427875140 is an apocalyptic number.

26427875140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26427875140 is an abundant number, since it is smaller than the sum of its proper divisors (29073716180).

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

26427875140 is a wasteful number, since it uses less digits than its factorization.

26427875140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72711 (or 72709 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 26427875140 in words is "twenty-six billion, four hundred twenty-seven million, eight hundred seventy-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 36313 36389 72626 72778 145252 145556 181565 181945 363130 363890 726260 727780 1321393757 2642787514 5285575028 6606968785 13213937570 26427875140