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204010720 = 2551275067
BaseRepresentation
bin11000010100011…
…11010011100000
3112012212211002121
430022033103200
5404211320340
632124354024
75025030304
oct1412172340
9465784077
10204010720
11a5182301
12583a5914
133335ca04
141d147d04
1512d9c94a
hexc28f4e0

204010720 has 24 divisors (see below), whose sum is σ = 481975704. Its totient is φ = 81604224.

The previous prime is 204010699. The next prime is 204010747. The reversal of 204010720 is 27010402.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 204010694 and 204010703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637374 + ... + 637693.

It is an arithmetic number, because the mean of its divisors is an integer number (20082321).

Almost surely, 2204010720 is an apocalyptic number.

204010720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204010720 is an abundant number, since it is smaller than the sum of its proper divisors (277964984).

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

204010720 is a wasteful number, since it uses less digits than its factorization.

204010720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275082 (or 1275074 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 204010720 is about 14283.2321272183. The cubic root of 204010720 is about 588.6868429659.

The spelling of 204010720 in words is "two hundred four million, ten thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1275067 2550134 5100268 6375335 10200536 12750670 20401072 25501340 40802144 51002680 102005360 204010720