Search a number
-
+
104168820 = 22357248021
BaseRepresentation
bin1100011010101…
…11110101110100
321021000022202110
412031113311310
5203131400240
614200411020
72403264120
oct615276564
9237008673
10104168820
1153889638
122aa76a70
1318773172
14db98580
159229c80
hex6357d74

104168820 has 48 divisors (see below), whose sum is σ = 333341568. Its totient is φ = 23809920.

The previous prime is 104168819. The next prime is 104168837. The reversal of 104168820 is 28861401.

It is a super-2 number, since 2×1041688202 = 21702286120384800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123591 + ... + 124430.

It is an arithmetic number, because the mean of its divisors is an integer number (6944616).

Almost surely, 2104168820 is an apocalyptic number.

104168820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104168820 is an abundant number, since it is smaller than the sum of its proper divisors (229172748).

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

104168820 is a wasteful number, since it uses less digits than its factorization.

104168820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248040 (or 248038 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 104168820 is about 10206.3127524097. The cubic root of 104168820 is about 470.5212566010.

The spelling of 104168820 in words is "one hundred four million, one hundred sixty-eight thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 248021 496042 744063 992084 1240105 1488126 1736147 2480210 2976252 3472294 3720315 4960420 5208441 6944588 7440630 8680735 10416882 14881260 17361470 20833764 26042205 34722940 52084410 104168820