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139712880 = 2435582137
BaseRepresentation
bin10000101001111…
…01100101110000
3100201220011001010
420110331211300
5241231303010
621510310520
73314353116
oct1024754560
9321804033
10139712880
117195639a
123a958440
1322c39758
14147abab6
15c3eb620
hex853d970

139712880 has 40 divisors (see below), whose sum is σ = 433110672. Its totient is φ = 37256704.

The previous prime is 139712849. The next prime is 139712899. The reversal of 139712880 is 88217931.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290829 + ... + 291308.

Almost surely, 2139712880 is an apocalyptic number.

139712880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139712880 is an abundant number, since it is smaller than the sum of its proper divisors (293397792).

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

139712880 is a wasteful number, since it uses less digits than its factorization.

139712880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582153 (or 582147 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 139712880 is about 11820.0203045511. The cubic root of 139712880 is about 518.8941984576.

The spelling of 139712880 in words is "one hundred thirty-nine million, seven hundred twelve thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 582137 1164274 1746411 2328548 2910685 3492822 4657096 5821370 6985644 8732055 9314192 11642740 13971288 17464110 23285480 27942576 34928220 46570960 69856440 139712880