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442250120 = 23513850481
BaseRepresentation
bin11010010111000…
…011001110001000
31010211011122010002
4122113003032020
51401204000440
6111514542132
713650030644
oct3227031610
91124148102
10442250120
11207703074
12104137948
1370815380
1442a41c24
1528c5c115
hex1a5c3388

442250120 has 32 divisors (see below), whose sum is σ = 1071607320. Its totient is φ = 163292160.

The previous prime is 442250117. The next prime is 442250131. The reversal of 442250120 is 21052244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 206381956 + 235868164 = 14366^2 + 15358^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 442250092 and 442250101.

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 7 ways as a sum of consecutive naturals, for example, 424721 + ... + 425760.

Almost surely, 2442250120 is an apocalyptic number.

442250120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442250120 is an abundant number, since it is smaller than the sum of its proper divisors (629357200).

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

442250120 is a wasteful number, since it uses less digits than its factorization.

442250120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850505 (or 850501 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 442250120 is about 21029.7436979151. The cubic root of 442250120 is about 761.8848185082.

The spelling of 442250120 in words is "four hundred forty-two million, two hundred fifty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 850481 1700962 3401924 4252405 6803848 8504810 11056253 17009620 22112506 34019240 44225012 55281265 88450024 110562530 221125060 442250120