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139625472 = 2103743151
BaseRepresentation
bin10000101001010…
…00010000000000
3100201201201010210
420110220100000
5241221003342
621504354120
73313540230
oct1024502000
9321651123
10139625472
11718a6758
123a915940
1322c08a2c
1414787cc0
15c3d079c
hex8528400

139625472 has 176 divisors, whose sum is σ = 438090752. Its totient is φ = 38707200.

The previous prime is 139625443. The next prime is 139625489. The reversal of 139625472 is 274526931.

Its product of digits (90720) is a multiple of the sum of its prime factors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 139625472.

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, 924597 + ... + 924747.

It is an arithmetic number, because the mean of its divisors is an integer number (2489152).

Almost surely, 2139625472 is an apocalyptic number.

139625472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139625472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219045376).

139625472 is an abundant number, since it is smaller than the sum of its proper divisors (298465280).

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

139625472 is a wasteful number, since it uses less digits than its factorization.

139625472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 206 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 139625472 is about 11816.3222704867. The cubic root of 139625472 is about 518.7859646619.

The spelling of 139625472 in words is "one hundred thirty-nine million, six hundred twenty-five thousand, four hundred seventy-two".