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104887720 = 2357521719
BaseRepresentation
bin1100100000001…
…11010110101000
321022100211220101
412100013112220
5203322401340
614224035144
72412350050
oct620072650
9238324811
10104887720
115422a773
122b162ab4
1318965452
14dd04560
15931cc9a
hex64075a8

104887720 has 64 divisors (see below), whose sum is σ = 270604800. Its totient is φ = 35842560.

The previous prime is 104887709. The next prime is 104887759. The reversal of 104887720 is 27788401.

It is a super-2 number, since 2×1048877202 = 22002867613596800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104887720.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 145521 + ... + 146239.

It is an arithmetic number, because the mean of its divisors is an integer number (4228200).

Almost surely, 2104887720 is an apocalyptic number.

104887720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104887720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135302400).

104887720 is an abundant number, since it is smaller than the sum of its proper divisors (165717080).

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

104887720 is a wasteful number, since it uses less digits than its factorization.

104887720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 104887720 is about 10241.4705975265. The cubic root of 104887720 is about 471.6011784755.

The spelling of 104887720 in words is "one hundred four million, eight hundred eighty-seven thousand, seven hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 521 719 1042 1438 2084 2605 2876 3595 3647 4168 5033 5210 5752 7190 7294 10066 10420 14380 14588 18235 20132 20840 25165 28760 29176 36470 40264 50330 72940 100660 145880 201320 374599 749198 1498396 1872995 2622193 2996792 3745990 5244386 7491980 10488772 13110965 14983960 20977544 26221930 52443860 104887720