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672056450 = 252136411613
BaseRepresentation
bin101000000011101…
…100010010000010
31201211121000010122
4220003230102002
52334021301300
6150404300242
722440246152
oct5003542202
91654530118
10672056450
113153a3a5a
121690a1682
13a9307450
1465382762
153e002c85
hex280ec482

672056450 has 48 divisors (see below), whose sum is σ = 1349116776. Its totient is φ = 247603200.

The previous prime is 672056447. The next prime is 672056453. The reversal of 672056450 is 54650276.

It is an interprime number because it is at equal distance from previous prime (672056447) and next prime (672056453).

It can be written as a sum of positive squares in 12 ways, for example, as 80156209 + 591900241 = 8953^2 + 24329^2 .

It is a super-3 number, since 3×6720564503 (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672056450.

It is not an unprimeable number, because it can be changed into a prime (672056453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415844 + ... + 417456.

Almost surely, 2672056450 is an apocalyptic number.

672056450 is an abundant number, since it is smaller than the sum of its proper divisors (677060326).

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

672056450 is a wasteful number, since it uses less digits than its factorization.

672056450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 672056450 is about 25924.0515737799. The cubic root of 672056450 is about 875.9283534670.

The spelling of 672056450 in words is "six hundred seventy-two million, fifty-six thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 641 650 1282 1613 3205 3226 6410 8065 8333 16025 16130 16666 20969 32050 40325 41665 41938 80650 83330 104845 208325 209690 416650 524225 1033933 1048450 2067866 5169665 10339330 13441129 25848325 26882258 51696650 67205645 134411290 336028225 672056450