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163481130680 = 23574313578167
BaseRepresentation
bin1001100001000000111…
…1000001011010111000
3120121222021120220112212
42120100033001122320
510134302132140210
6203034023554252
714545133453150
oct2302017013270
9517867526485
10163481130680
116337192216a
12278255bb988
131255452a66a
147cabd9d760
1543bc3bd805
hex26103c16b8

163481130680 has 64 divisors (see below), whose sum is σ = 430156362240. Its totient is φ = 54747165312.

The previous prime is 163481130671. The next prime is 163481130713. The reversal of 163481130680 is 86031184361.

It is a super-2 number, since 2×1634811306802 (a number of 23 digits) contains 22 as substring.

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, 6777044 + ... + 6801123.

It is an arithmetic number, because the mean of its divisors is an integer number (6721193160).

Almost surely, 2163481130680 is an apocalyptic number.

163481130680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163481130680 is an abundant number, since it is smaller than the sum of its proper divisors (266675231560).

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

163481130680 is a wasteful number, since it uses less digits than its factorization.

163481130680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578228 (or 13578224 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 163481130680 in words is "one hundred sixty-three billion, four hundred eighty-one million, one hundred thirty thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 43 56 70 86 140 172 215 280 301 344 430 602 860 1204 1505 1720 2408 3010 6020 12040 13578167 27156334 54312668 67890835 95047169 108625336 135781670 190094338 271563340 380188676 475235845 543126680 583861181 760377352 950471690 1167722362 1900943380 2335444724 2919305905 3801886760 4087028267 4670889448 5838611810 8174056534 11677223620 16348113068 20435141335 23354447240 32696226136 40870282670 81740565340 163481130680