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139751144 = 23139831367
BaseRepresentation
bin10000101010001…
…10111011101000
3100201222002112022
420111012323220
5241234014034
621511204012
73314602511
oct1025067350
9321862468
10139751144
1171982115
123a976608
1322c50cb0
14147bba08
15c407b2e
hex8546ee8

139751144 has 32 divisors (see below), whose sum is σ = 282683520. Its totient is φ = 64387776.

The previous prime is 139751141. The next prime is 139751159. The reversal of 139751144 is 441157931.

It is not an unprimeable number, because it can be changed into a prime (139751141) 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 7 ways as a sum of consecutive naturals, for example, 101549 + ... + 102915.

It is an arithmetic number, because the mean of its divisors is an integer number (8833860).

Almost surely, 2139751144 is an apocalyptic number.

It is an amenable number.

139751144 is an abundant number, since it is smaller than the sum of its proper divisors (142932376).

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

139751144 is a wasteful number, since it uses less digits than its factorization.

139751144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369 (or 2365 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 139751144 is about 11821.6388034824. The cubic root of 139751144 is about 518.9415650170.

The spelling of 139751144 in words is "one hundred thirty-nine million, seven hundred fifty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 983 1367 1966 2734 3932 5468 7864 10936 12779 17771 25558 35542 51116 71084 102232 142168 1343761 2687522 5375044 10750088 17468893 34937786 69875572 139751144