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13875870490 = 254013345773
BaseRepresentation
bin11001110110001000…
…01111101100011010
31022211000220020220021
430323010033230122
5211404210323430
610212520021054
71000566644626
oct147304175432
938730806807
1013875870490
115980626969
12283300178a
13140199a471
14958c04186
155632b407a
hex33b10fb1a

13875870490 has 16 divisors (see below), whose sum is σ = 24982863048. Its totient is φ = 5548949056.

The previous prime is 13875870479. The next prime is 13875870493. The reversal of 13875870490 is 9407857831.

13875870490 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13413577489 + 462293001 = 115817^2 + 21501^2 .

It is not an unprimeable number, because it can be changed into a prime (13875870493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132757 + ... + 213016.

Almost surely, 213875870490 is an apocalyptic number.

13875870490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13875870490 is a deficient number, since it is larger than the sum of its proper divisors (11106992558).

13875870490 is a wasteful number, since it uses less digits than its factorization.

13875870490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349793.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 13875870490 in words is "thirteen billion, eight hundred seventy-five million, eight hundred seventy thousand, four hundred ninety".

Divisors: 1 2 5 10 4013 8026 20065 40130 345773 691546 1728865 3457730 1387587049 2775174098 6937935245 13875870490