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139253180 = 225115771097
BaseRepresentation
bin10000100110011…
…01010110111100
3100201000210110012
420103031112330
5241122100210
621452402352
73310426643
oct1023152674
9321023405
10139253180
1171671a80
123a7763b8
1322b08441
14146cc35a
15c35a305
hex84cd5bc

139253180 has 48 divisors (see below), whose sum is σ = 319860576. Its totient is φ = 50503680.

The previous prime is 139253159. The next prime is 139253183. The reversal of 139253180 is 81352931.

139253180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1392531802 = 38782896280224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139253183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126392 + ... + 127488.

It is an arithmetic number, because the mean of its divisors is an integer number (6663762).

Almost surely, 2139253180 is an apocalyptic number.

139253180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139253180 is an abundant number, since it is smaller than the sum of its proper divisors (180607396).

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

139253180 is a wasteful number, since it uses less digits than its factorization.

139253180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 139253180 is about 11800.5584613611. The cubic root of 139253180 is about 518.3244639138.

The spelling of 139253180 in words is "one hundred thirty-nine million, two hundred fifty-three thousand, one hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 577 1097 1154 2194 2308 2885 4388 5485 5770 6347 10970 11540 12067 12694 21940 24134 25388 31735 48268 60335 63470 120670 126940 241340 632969 1265938 2531876 3164845 6329690 6962659 12659380 13925318 27850636 34813295 69626590 139253180