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184380020 = 22511838091
BaseRepresentation
bin10101111110101…
…10101001110100
3110211221110211122
422333112221310
5334200130040
630143523112
74366130036
oct1277265164
9424843748
10184380020
1195094490
12518b9498
132c278706
141a6b7c56
15112c11b5
hexafd6a74

184380020 has 24 divisors (see below), whose sum is σ = 422398368. Its totient is φ = 67047200.

The previous prime is 184380017. The next prime is 184380059. The reversal of 184380020 is 20083481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418826 + ... + 419265.

It is an arithmetic number, because the mean of its divisors is an integer number (17599932).

Almost surely, 2184380020 is an apocalyptic number.

184380020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

184380020 is an abundant number, since it is smaller than the sum of its proper divisors (238018348).

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

184380020 is a wasteful number, since it uses less digits than its factorization.

184380020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838111 (or 838109 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 184380020 is about 13578.6604641253. The cubic root of 184380020 is about 569.1646942184.

The spelling of 184380020 in words is "one hundred eighty-four million, three hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 838091 1676182 3352364 4190455 8380910 9219001 16761820 18438002 36876004 46095005 92190010 184380020