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1993099275 = 325231285749
BaseRepresentation
bin111011011001100…
…0100100000001011
312010220100221012200
41312303010200023
513040213134100
6525435011243
7100251031026
oct16663044013
95126327180
101993099275
11933063a92
12477599b23
13259bcc3ab
1414c9c01bd
15b9e9ce00
hex76cc480b

1993099275 has 36 divisors (see below), whose sum is σ = 3685032000. Its totient is φ = 1028692800.

The previous prime is 1993099267. The next prime is 1993099319. The reversal of 1993099275 is 5729903991.

It is not a de Polignac number, because 1993099275 - 23 = 1993099267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 135900 + ... + 149849.

It is an arithmetic number, because the mean of its divisors is an integer number (102362000).

Almost surely, 21993099275 is an apocalyptic number.

1993099275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1993099275 is a deficient number, since it is larger than the sum of its proper divisors (1691932725).

1993099275 is a wasteful number, since it uses less digits than its factorization.

1993099275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285796 (or 285788 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 1993099275 is about 44644.1404329840. The cubic root of 1993099275 is about 1258.4703186493.

The spelling of 1993099275 in words is "one billion, nine hundred ninety-three million, ninety-nine thousand, two hundred seventy-five".

Divisors: 1 3 5 9 15 25 31 45 75 93 155 225 279 465 775 1395 2325 6975 285749 857247 1428745 2571741 4286235 7143725 8858219 12858705 21431175 26574657 44291095 64293525 79723971 132873285 221455475 398619855 664366425 1993099275