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55152860180 = 225111732695387
BaseRepresentation
bin110011010111010111…
…011101110000010100
312021100200211120221012
4303113113131300110
51400423113011210
641200433111352
73661511401505
oct632727356024
9167320746835
1055152860180
1121432396190
12a8326b8558
13527c48c312
142952c22bac
15167be43305
hexcd75ddc14

55152860180 has 96 divisors (see below), whose sum is σ = 127576632960. Its totient is φ = 19861844480.

The previous prime is 55152860179. The next prime is 55152860227. The reversal of 55152860180 is 8106825155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10235447 + ... + 10240833.

It is an arithmetic number, because the mean of its divisors is an integer number (1328923260).

Almost surely, 255152860180 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 55152860180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63788316480).

55152860180 is an abundant number, since it is smaller than the sum of its proper divisors (72423772780).

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

55152860180 is a wasteful number, since it uses less digits than its factorization.

55152860180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849 (or 5847 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 55152860180 in words is "fifty-five billion, one hundred fifty-two million, eight hundred sixty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 173 220 269 346 538 692 865 1076 1345 1730 1903 2690 2959 3460 3806 5380 5387 5918 7612 9515 10774 11836 14795 19030 21548 26935 29590 38060 46537 53870 59180 59257 93074 107740 118514 186148 232685 237028 296285 465370 511907 592570 930740 931951 1023814 1185140 1449103 1863902 2047628 2559535 2898206 3727804 4659755 5119070 5796412 7245515 9319510 10238140 10251461 14491030 15940133 18639020 20502922 28982060 31880266 41005844 51257305 63760532 79700665 102514610 159401330 205029220 250694819 318802660 501389638 1002779276 1253474095 2506948190 2757643009 5013896380 5515286018 11030572036 13788215045 27576430090 55152860180