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139000308 = 22311583359
BaseRepresentation
bin10000100100011…
…11100111110100
3100200112221120120
420102033213310
5241041002213
621443131540
73305324466
oct1022174764
9320487516
10139000308
1171509a97
123a673bb0
1322a4a305
1414664136
15c30a423
hex848f9f4

139000308 has 12 divisors (see below), whose sum is σ = 324334080. Its totient is φ = 46333432.

The previous prime is 139000297. The next prime is 139000319. The reversal of 139000308 is 803000931.

139000308 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (139000297) and next prime (139000319).

It is a tau number, because it is divible by the number of its divisors (12).

139000308 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5791668 + ... + 5791691.

It is an arithmetic number, because the mean of its divisors is an integer number (27027840).

Almost surely, 2139000308 is an apocalyptic number.

It is an amenable number.

139000308 is an abundant number, since it is smaller than the sum of its proper divisors (185333772).

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

139000308 is a wasteful number, since it uses less digits than its factorization.

139000308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11583366 (or 11583364 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 139000308 is about 11789.8391846539. The cubic root of 139000308 is about 518.0105293448.

The spelling of 139000308 in words is "one hundred thirty-nine million, three hundred eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 11583359 23166718 34750077 46333436 69500154 139000308