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139448296 = 23131970571
BaseRepresentation
bin10000100111111…
…00111111101000
3100201101201002201
420103330333220
5241144321141
621500505544
73312201541
oct1023747750
9321351081
10139448296
1171795629
123a84b2b4
1322b761b0
141473d4c8
15c398031
hex84fcfe8

139448296 has 32 divisors (see below), whose sum is σ = 296402400. Its totient is φ = 60972480.

The previous prime is 139448279. The next prime is 139448299. The reversal of 139448296 is 692844931.

It is not an unprimeable number, because it can be changed into a prime (139448299) 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, 33310 + ... + 37261.

It is an arithmetic number, because the mean of its divisors is an integer number (9262575).

Almost surely, 2139448296 is an apocalyptic number.

It is an amenable number.

139448296 is an abundant number, since it is smaller than the sum of its proper divisors (156954104).

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

139448296 is a wasteful number, since it uses less digits than its factorization.

139448296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70609 (or 70605 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 139448296 is about 11808.8228033111. The cubic root of 139448296 is about 518.5664361214.

The spelling of 139448296 in words is "one hundred thirty-nine million, four hundred forty-eight thousand, two hundred ninety-six".

Divisors: 1 2 4 8 13 19 26 38 52 76 104 152 247 494 988 1976 70571 141142 282284 564568 917423 1340849 1834846 2681698 3669692 5363396 7339384 10726792 17431037 34862074 69724148 139448296