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189982632255 = 35134720899923
BaseRepresentation
bin1011000011101111011…
…0001110100100111111
3200011101012211200022020
42300323312032210333
511103041023213010
6223135443051223
716503642505143
oct2607366164477
9604335750266
10189982632255
1173631274589
12309a0970b13
1314bb8b60740
1492a391b223
154e1dcd5470
hex2c3bd8e93f

189982632255 has 64 divisors (see below), whose sum is σ = 334513428480. Its totient is φ = 91486872576.

The previous prime is 189982632239. The next prime is 189982632263. The reversal of 189982632255 is 552236289981.

It is not a de Polignac number, because 189982632255 - 24 = 189982632239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19140724 + ... + 19150646.

It is an arithmetic number, because the mean of its divisors is an integer number (5226772320).

Almost surely, 2189982632255 is an apocalyptic number.

189982632255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189982632255 is a deficient number, since it is larger than the sum of its proper divisors (144530796225).

189982632255 is a wasteful number, since it uses less digits than its factorization.

189982632255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12080.

The product of its digits is 18662400, while the sum is 60.

The spelling of 189982632255 in words is "one hundred eighty-nine billion, nine hundred eighty-two million, six hundred thirty-two thousand, two hundred fifty-five".

Divisors: 1 3 5 13 15 39 47 65 141 195 235 611 705 1833 2089 3055 6267 9165 9923 10445 27157 29769 31335 49615 81471 98183 128999 135785 148845 294549 386997 407355 466381 490915 644995 1276379 1399143 1472745 1934985 2331905 3829137 6062953 6381895 6995715 18188859 19145685 20729147 30314765 62187441 90944295 103645735 269478911 310937205 808436733 974269909 1347394555 2922809727 4042183665 4871349545 12665508817 14614048635 37996526451 63327544085 189982632255