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431074944 = 27321093433
BaseRepresentation
bin11001101100011…
…010111010000000
31010001010212122200
4121230122322000
51340323344234
6110435233200
713453035156
oct3154327200
91101125580
10431074944
1120136aa93
12100448800
136b401941
14413733d6
1527ca0d99
hex19b1ae80

431074944 has 96 divisors (see below), whose sum is σ = 1252208100. Its totient is φ = 142331904.

The previous prime is 431074913. The next prime is 431074949. The reversal of 431074944 is 449470134.

It can be written as a sum of positive squares in 2 ways, for example, as 430977600 + 97344 = 20760^2 + 312^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 431074899 and 431074908.

It is not an unprimeable number, because it can be changed into a prime (431074949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123852 + ... + 127284.

Almost surely, 2431074944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431074944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626104050).

431074944 is an abundant number, since it is smaller than the sum of its proper divisors (821133156).

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

431074944 is a wasteful number, since it uses less digits than its factorization.

431074944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 431074944 is about 20762.3443762982. The cubic root of 431074944 is about 755.4126621480.

The spelling of 431074944 in words is "four hundred thirty-one million, seventy-four thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 109 128 144 192 218 288 327 384 436 576 654 872 981 1152 1308 1744 1962 2616 3433 3488 3924 5232 6866 6976 7848 10299 10464 13732 13952 15696 20598 20928 27464 30897 31392 41196 41856 54928 61794 62784 82392 109856 123588 125568 164784 219712 247176 329568 374197 439424 494352 659136 748394 988704 1122591 1318272 1496788 1977408 2245182 2993576 3367773 3954816 4490364 5987152 6735546 8980728 11974304 13471092 17961456 23948608 26942184 35922912 47897216 53884368 71845824 107768736 143691648 215537472 431074944