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430931968 = 21513151
BaseRepresentation
bin11001101011111…
…000000000000000
31010000212121112021
4121223320000000
51340304310333
6110432211224
713451601265
oct3153700000
91100777467
10430931968
11201282625
12100399b14
136b38183c
144133726c
1527c7382d
hex19af8000

430931968 has 32 divisors (see below), whose sum is σ = 861916320. Its totient is φ = 215449600.

The previous prime is 430931959. The next prime is 430932053. The reversal of 430931968 is 869139034.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×4309319682 = 371404722088706048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26193 + ... + 39343.

It is an arithmetic number, because the mean of its divisors is an integer number (26934885).

Almost surely, 2430931968 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 430931968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430958160).

430931968 is an abundant number, since it is smaller than the sum of its proper divisors (430984352).

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

430931968 is an frugal number, since it uses more digits than its factorization.

430931968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13181 (or 13153 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 430931968 is about 20758.9009342980. The cubic root of 430931968 is about 755.3291362048.

The spelling of 430931968 in words is "four hundred thirty million, nine hundred thirty-one thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 13151 16384 26302 32768 52604 105208 210416 420832 841664 1683328 3366656 6733312 13466624 26933248 53866496 107732992 215465984 430931968