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425356971 = 31319574031
BaseRepresentation
bin11001010110100…
…110111010101011
31002122101101001220
4121112212322223
51332342410341
6110112513123
713353321534
oct3126467253
91078341056
10425356971
111a9114a96
12ba54b7a3
136a17c120
14406c568b
1527521a66
hex195a6eab

425356971 has 16 divisors (see below), whose sum is σ = 642915840. Its totient is φ = 247980960.

The previous prime is 425356961. The next prime is 425356979. The reversal of 425356971 is 179653524.

It is not a de Polignac number, because 425356971 - 26 = 425356907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425356979) 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 15 ways as a sum of consecutive naturals, for example, 286275 + ... + 287756.

It is an arithmetic number, because the mean of its divisors is an integer number (40182240).

Almost surely, 2425356971 is an apocalyptic number.

425356971 is a deficient number, since it is larger than the sum of its proper divisors (217558869).

425356971 is a wasteful number, since it uses less digits than its factorization.

425356971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574066.

The product of its digits is 226800, while the sum is 42.

The square root of 425356971 is about 20624.1841293177. The cubic root of 425356971 is about 752.0577393373.

The spelling of 425356971 in words is "four hundred twenty-five million, three hundred fifty-six thousand, nine hundred seventy-one".

Divisors: 1 3 13 19 39 57 247 741 574031 1722093 7462403 10906589 22387209 32719767 141785657 425356971