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139214790 = 2325111329373
BaseRepresentation
bin10000100110000…
…11111111000110
3100200221211210100
420103003333012
5241114333130
621451504530
73310210011
oct1023037706
9320854710
10139214790
1171646150
123a758146
1322ac3b20
14146bc378
15c34dc60
hex84c3fc6

139214790 has 192 divisors, whose sum is σ = 441080640. Its totient is φ = 29998080.

The previous prime is 139214783. The next prime is 139214809. The reversal of 139214790 is 97412931.

139214790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 373044 + ... + 373416.

It is an arithmetic number, because the mean of its divisors is an integer number (2297295).

Almost surely, 2139214790 is an apocalyptic number.

139214790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139214790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220540320).

139214790 is an abundant number, since it is smaller than the sum of its proper divisors (301865850).

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

139214790 is a wasteful number, since it uses less digits than its factorization.

139214790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 139214790 is about 11798.9317313052. The cubic root of 139214790 is about 518.2768281255.

The spelling of 139214790 in words is "one hundred thirty-nine million, two hundred fourteen thousand, seven hundred ninety".