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139160085 = 3519231829
BaseRepresentation
bin10000100101101…
…10101000010101
3100200212001202020
420102312220111
5241111110320
621450403353
73306561351
oct1022665025
9320761666
10139160085
1171609039
123a730559
1322aa4c5c
14146a6461
15c33c940
hex84b6a15

139160085 has 48 divisors (see below), whose sum is σ = 242864640. Its totient is φ = 67962240.

The previous prime is 139160053. The next prime is 139160089. The reversal of 139160085 is 580061931.

It is not a de Polignac number, because 139160085 - 25 = 139160053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139160089) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167451 + ... + 168279.

It is an arithmetic number, because the mean of its divisors is an integer number (5059680).

Almost surely, 2139160085 is an apocalyptic number.

139160085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139160085 is a deficient number, since it is larger than the sum of its proper divisors (103704555).

139160085 is a wasteful number, since it uses less digits than its factorization.

139160085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 139160085 is about 11796.6132851764. The cubic root of 139160085 is about 518.2089329246.

The spelling of 139160085 in words is "one hundred thirty-nine million, one hundred sixty thousand, eighty-five".

Divisors: 1 3 5 15 19 31 57 93 95 155 285 361 465 589 829 1083 1767 1805 2487 2945 4145 5415 8835 11191 12435 15751 25699 33573 47253 55955 77097 78755 128495 167865 236265 299269 385485 488281 897807 1464843 1496345 2441405 4489035 7324215 9277339 27832017 46386695 139160085