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104990895 = 32517711933
BaseRepresentation
bin1100100001000…
…00100010101111
321022120002102200
412100200202233
5203334202040
614230152543
72413256622
oct620404257
9238502380
10104990895
11542a0239
122b1b2753
13189a03b9
14dd2ddb9
15933d630
hex64208af

104990895 has 48 divisors (see below), whose sum is σ = 195504192. Its totient is φ = 51932160.

The previous prime is 104990891. The next prime is 104990911. The reversal of 104990895 is 598099401.

It is not a de Polignac number, because 104990895 - 22 = 104990891 is a prime.

It is a super-2 number, since 2×1049908952 = 22046176065802050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 104990895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104990891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53349 + ... + 55281.

It is an arithmetic number, because the mean of its divisors is an integer number (4073004).

Almost surely, 2104990895 is an apocalyptic number.

104990895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

104990895 is a deficient number, since it is larger than the sum of its proper divisors (90513297).

104990895 is a wasteful number, since it uses less digits than its factorization.

104990895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 104990895 is about 10246.5064778196. The cubic root of 104990895 is about 471.7557612554.

The spelling of 104990895 in words is "one hundred four million, nine hundred ninety thousand, eight hundred ninety-five".

Divisors: 1 3 5 9 15 17 45 51 71 85 153 213 255 355 639 765 1065 1207 1933 3195 3621 5799 6035 9665 10863 17397 18105 28995 32861 54315 86985 98583 137243 164305 295749 411729 492915 686215 1235187 1478745 2058645 2333131 6175935 6999393 11665655 20998179 34996965 104990895