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139079148 = 223132573469
BaseRepresentation
bin10000100101000…
…10110111101100
3100200200221201120
420102202313230
5241101013043
621444540540
73306103365
oct1022426754
9320627646
10139079148
117156324a
123a6b1750
1322a77170
1414684b6c
15c323983
hex84a2dec

139079148 has 48 divisors (see below), whose sum is σ = 350941920. Its totient is φ = 42614784.

The previous prime is 139079147. The next prime is 139079153. The reversal of 139079148 is 841970931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (139079147) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 38358 + ... + 41826.

It is an arithmetic number, because the mean of its divisors is an integer number (7311290).

Almost surely, 2139079148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139079148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175470960).

139079148 is an abundant number, since it is smaller than the sum of its proper divisors (211862772).

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

139079148 is a wasteful number, since it uses less digits than its factorization.

139079148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746 (or 3744 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 139079148 is about 11793.1822677342. The cubic root of 139079148 is about 518.1084481474.

The spelling of 139079148 in words is "one hundred thirty-nine million, seventy-nine thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 257 514 771 1028 1542 3084 3341 3469 6682 6938 10023 10407 13364 13876 20046 20814 40092 41628 45097 90194 135291 180388 270582 541164 891533 1783066 2674599 3566132 5349198 10698396 11589929 23179858 34769787 46359716 69539574 139079148