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425023420 = 22529732799
BaseRepresentation
bin11001010101010…
…101011110111100
31002121202102112011
4121111111132330
51332301222140
6110101421004
713350432223
oct3125253674
91077672464
10425023420
111a8a07428
12ba40a764
136a093363
1440639cba
15274a7cea
hex195557bc

425023420 has 24 divisors (see below), whose sum is σ = 923328000. Its totient is φ = 164146752.

The previous prime is 425023381. The next prime is 425023427. The reversal of 425023420 is 24320524.

It is a junction number, because it is equal to n+sod(n) for n = 425023391 and 425023400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425023427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365820 + ... + 366979.

It is an arithmetic number, because the mean of its divisors is an integer number (38472000).

Almost surely, 2425023420 is an apocalyptic number.

It is an amenable number.

425023420 is an abundant number, since it is smaller than the sum of its proper divisors (498304580).

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

425023420 is a wasteful number, since it uses less digits than its factorization.

425023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732837 (or 732835 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 425023420 is about 20616.0961386971. The cubic root of 425023420 is about 751.8611082517.

Adding to 425023420 its reverse (24320524), we get a palindrome (449343944).

The spelling of 425023420 in words is "four hundred twenty-five million, twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 732799 1465598 2931196 3663995 7327990 14655980 21251171 42502342 85004684 106255855 212511710 425023420