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431023072 = 2561220811
BaseRepresentation
bin11001101100001…
…110001111100000
31010001001020111111
4121230032033200
51340320214242
6110434153104
713452431014
oct3154161740
91101036444
10431023072
11201335017
12100422794
136b3b414c
144135c544
1527c90817
hex19b0e3e0

431023072 has 24 divisors (see below), whose sum is σ = 862491672. Its totient is φ = 211977600.

The previous prime is 431023069. The next prime is 431023081. The reversal of 431023072 is 270320134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108454 + ... + 112357.

It is an arithmetic number, because the mean of its divisors is an integer number (35937153).

Almost surely, 2431023072 is an apocalyptic number.

It is an amenable number.

431023072 is an abundant number, since it is smaller than the sum of its proper divisors (431468600).

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

431023072 is a wasteful number, since it uses less digits than its factorization.

431023072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220882 (or 220874 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 431023072 is about 20761.0951541579. The cubic root of 431023072 is about 755.3823608914.

The spelling of 431023072 in words is "four hundred thirty-one million, twenty-three thousand, seventy-two".

Divisors: 1 2 4 8 16 32 61 122 244 488 976 1952 220811 441622 883244 1766488 3532976 7065952 13469471 26938942 53877884 107755768 215511536 431023072