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204148764 = 223231182929
BaseRepresentation
bin11000010101100…
…01000000011100
3112020010211110100
430022301000130
5404230230024
632131341100
75026143621
oct1412610034
9466124410
10204148764
11a5266a96
1258451790
13333aa7b1
141d182348
1512dc87c9
hexc2b101c

204148764 has 36 divisors (see below), whose sum is σ = 532692160. Its totient is φ = 65854080.

The previous prime is 204148757. The next prime is 204148793. The reversal of 204148764 is 467841402.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90349 + ... + 92580.

Almost surely, 2204148764 is an apocalyptic number.

It is an amenable number.

204148764 is an abundant number, since it is smaller than the sum of its proper divisors (328543396).

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

204148764 is a wasteful number, since it uses less digits than its factorization.

204148764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182970 (or 182965 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 204148764 is about 14288.0636896677. The cubic root of 204148764 is about 588.8195914871.

It can be divided in two parts, 2041 and 48764, that added together give a palindrome (50805).

The spelling of 204148764 in words is "two hundred four million, one hundred forty-eight thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 182929 365858 548787 731716 1097574 1646361 2195148 3292722 5670799 6585444 11341598 17012397 22683196 34024794 51037191 68049588 102074382 204148764