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425975983 = 29891511093
BaseRepresentation
bin11001011000111…
…110000010101111
31002200112211012021
4121120332002233
51333022212413
6110134051011
713361510326
oct3130760257
91080484167
10425975983
111a94a8074
12ba7a9a67
136a337ac4
14408070bd
15275e518d
hex1963e0af

425975983 has 16 divisors (see below), whose sum is σ = 448977600. Its totient is φ = 403603200.

The previous prime is 425975981. The next prime is 425975989. The reversal of 425975983 is 389579524.

It is a cyclic number.

It is not a de Polignac number, because 425975983 - 21 = 425975981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425975983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425975981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389185 + ... + 390277.

It is an arithmetic number, because the mean of its divisors is an integer number (28061100).

Almost surely, 2425975983 is an apocalyptic number.

425975983 is a deficient number, since it is larger than the sum of its proper divisors (23001617).

425975983 is a wasteful number, since it uses less digits than its factorization.

425975983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its digits is 2721600, while the sum is 52.

The square root of 425975983 is about 20639.1856186236. The cubic root of 425975983 is about 752.4223798261.

The spelling of 425975983 in words is "four hundred twenty-five million, nine hundred seventy-five thousand, nine hundred eighty-three".

Divisors: 1 29 89 151 1093 2581 4379 13439 31697 97277 165043 389731 2821033 4786247 14688827 425975983