Search a number
-
+
117884172880 = 2457918652559
BaseRepresentation
bin110110111001001110…
…0011011101001010000
3102021021112212110100001
41231302130123221100
53412411322013010
6130053310535344
711342164636135
oct1556234335120
9367245773301
10117884172880
1145aa35a6971
121aa1b207554
13b168a47566
1459c433a58c
1530ee363c3a
hex1b7271ba50

117884172880 has 40 divisors (see below), whose sum is σ = 277550092800. Its totient is φ = 46556784768.

The previous prime is 117884172871. The next prime is 117884172919. The reversal of 117884172880 is 88271488711.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9319960 + ... + 9332599.

It is an arithmetic number, because the mean of its divisors is an integer number (6938752320).

Almost surely, 2117884172880 is an apocalyptic number.

117884172880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117884172880 is an abundant number, since it is smaller than the sum of its proper divisors (159665919920).

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

117884172880 is a wasteful number, since it uses less digits than its factorization.

117884172880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652651 (or 18652645 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 55.

The spelling of 117884172880 in words is "one hundred seventeen billion, eight hundred eighty-four million, one hundred seventy-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 79 80 158 316 395 632 790 1264 1580 3160 6320 18652559 37305118 74610236 93262795 149220472 186525590 298440944 373051180 746102360 1473552161 1492204720 2947104322 5894208644 7367760805 11788417288 14735521610 23576834576 29471043220 58942086440 117884172880