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425430523 = 7531146713
BaseRepresentation
bin11001010110111…
…000110111111011
31002122112002222001
4121112320313323
51332402234043
6110114241431
713354046140
oct3126706773
91078462861
10425430523
111a9165281
12ba586277
136a1a674b
14407043c7
152753874d
hex195b8dfb

425430523 has 8 divisors (see below), whose sum is σ = 495380448. Its totient is φ = 357774144.

The previous prime is 425430497. The next prime is 425430541. The reversal of 425430523 is 325034524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425430523 - 225 = 391876091 is a prime.

It is a super-2 number, since 2×4254305232 = 361982259800107058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425430491 and 425430500.

It is not an unprimeable number, because it can be changed into a prime (425430223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572986 + ... + 573727.

It is an arithmetic number, because the mean of its divisors is an integer number (61922556).

Almost surely, 2425430523 is an apocalyptic number.

425430523 is a deficient number, since it is larger than the sum of its proper divisors (69949925).

425430523 is a wasteful number, since it uses less digits than its factorization.

425430523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146773.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 425430523 is about 20625.9672015641. The cubic root of 425430523 is about 752.1010850184.

The spelling of 425430523 in words is "four hundred twenty-five million, four hundred thirty thousand, five hundred twenty-three".

Divisors: 1 7 53 371 1146713 8026991 60775789 425430523