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184102020 = 223251953831
BaseRepresentation
bin10101111100100…
…10110010000100
3110211102100111100
422332102302010
5334112231040
630133540100
74363561404
oct1276226204
9424370440
10184102020
1194a14633
12517a4630
132c1ac00b
141a644804
1511268b30
hexaf92c84

184102020 has 72 divisors (see below), whose sum is σ = 587845440. Its totient is φ = 46509120.

The previous prime is 184101991. The next prime is 184102057. The reversal of 184102020 is 20201481.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 184101984 and 184102002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23496 + ... + 30335.

It is an arithmetic number, because the mean of its divisors is an integer number (8164520).

Almost surely, 2184102020 is an apocalyptic number.

184102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

184102020 is an abundant number, since it is smaller than the sum of its proper divisors (403743420).

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

184102020 is a wasteful number, since it uses less digits than its factorization.

184102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53865 (or 53860 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 184102020 is about 13568.4199522273. The cubic root of 184102020 is about 568.8784965877.

The spelling of 184102020 in words is "one hundred eighty-four million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 855 1140 1710 3420 53831 107662 161493 215324 269155 322986 484479 538310 645972 807465 968958 1022789 1076620 1614930 1937916 2045578 2422395 3068367 3229860 4091156 4844790 5113945 6136734 9205101 9689580 10227890 12273468 15341835 18410202 20455780 30683670 36820404 46025505 61367340 92051010 184102020