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139080144 = 2437478807
BaseRepresentation
bin10000100101000…
…11000111010000
3100200201000002110
420102203013100
5241101031034
621444545320
73306106320
oct1022430720
9320630073
10139080144
1171563a75
123a6b2240
1322a77758
1414685280
15c323de9
hex84a31d0

139080144 has 80 divisors (see below), whose sum is σ = 419401728. Its totient is φ = 38887296.

The previous prime is 139080127. The next prime is 139080163. The reversal of 139080144 is 441080931.

It is a happy number.

It is a congruent number.

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, 11389 + ... + 20195.

Almost surely, 2139080144 is an apocalyptic number.

139080144 is a gapful number since it is divisible by the number (14) 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 139080144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209700864).

139080144 is an abundant number, since it is smaller than the sum of its proper divisors (280321584).

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

139080144 is a wasteful number, since it uses less digits than its factorization.

139080144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872 (or 8866 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 139080144 is about 11793.2244954465. The cubic root of 139080144 is about 518.1096849367.

The spelling of 139080144 in words is "one hundred thirty-nine million, eighty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 47 48 56 84 94 112 141 168 188 282 329 336 376 564 658 752 987 1128 1316 1974 2256 2632 3948 5264 7896 8807 15792 17614 26421 35228 52842 61649 70456 105684 123298 140912 184947 211368 246596 369894 413929 422736 493192 739788 827858 986384 1241787 1479576 1655716 2483574 2897503 2959152 3311432 4967148 5795006 6622864 8692509 9934296 11590012 17385018 19868592 23180024 34770036 46360048 69540072 139080144