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420251054 = 2210125527
BaseRepresentation
bin11001000011001…
…000010110101110
31002021202222001212
4121003020112232
51330041013204
6105411234422
713262034506
oct3103102656
91067688055
10420251054
111a6247923
12b88a8a12
13690b2082
143db56a06
1526d63c6e
hex190c85ae

420251054 has 4 divisors (see below), whose sum is σ = 630376584. Its totient is φ = 210125526.

The previous prime is 420251047. The next prime is 420251077. The reversal of 420251054 is 450152024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4202510542 = 353221896776221832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 105062762 + ... + 105062765.

It is an arithmetic number, because the mean of its divisors is an integer number (157594146).

Almost surely, 2420251054 is an apocalyptic number.

420251054 is a deficient number, since it is larger than the sum of its proper divisors (210125530).

420251054 is a wasteful number, since it uses less digits than its factorization.

420251054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210125529.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 420251054 is about 20500.0257073010. The cubic root of 420251054 is about 749.0364241887.

The spelling of 420251054 in words is "four hundred twenty million, two hundred fifty-one thousand, fifty-four".

Divisors: 1 2 210125527 420251054