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13898561170 = 2513293686621
BaseRepresentation
bin11001111000110101…
…10011011010010010
31022212121121001122211
430330122303122102
5211431012424140
610215050222334
71001263551334
oct147432633222
938777531584
1013898561170
11599241479a
12283a7249aa
1314065b34c0
1495bc2d454
155652972ea
hex33c6b3692

13898561170 has 32 divisors (see below), whose sum is σ = 27870862320. Its totient is φ = 4954817280.

The previous prime is 13898561143. The next prime is 13898561189. The reversal of 13898561170 is 7116589831.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 795409209 + 13103151961 = 28203^2 + 114469^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839541 + ... + 1847080.

Almost surely, 213898561170 is an apocalyptic number.

13898561170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13898561170 is an abundant number, since it is smaller than the sum of its proper divisors (13972301150).

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

13898561170 is a wasteful number, since it uses less digits than its factorization.

13898561170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686670.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 13898561170 in words is "thirteen billion, eight hundred ninety-eight million, five hundred sixty-one thousand, one hundred seventy".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1885 3770 3686621 7373242 18433105 36866210 47926073 95852146 106912009 213824018 239630365 479260730 534560045 1069120090 1389856117 2779712234 6949280585 13898561170