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307090464 = 25319315431
BaseRepresentation
bin10010010011011…
…101010000100000
3210101211210220220
4102103131100200
51112103343324
650250003040
710416140322
oct2223352040
9711753826
10307090464
1114838767a
1286a16480
134b811245
142cadb612
151be5eb79
hex124dd420

307090464 has 96 divisors (see below), whose sum is σ = 876072960. Its totient is φ = 93830400.

The previous prime is 307090447. The next prime is 307090471. The reversal of 307090464 is 464090703.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53829 + ... + 59259.

It is an arithmetic number, because the mean of its divisors is an integer number (9125760).

Almost surely, 2307090464 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 307090464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438036480).

307090464 is an abundant number, since it is smaller than the sum of its proper divisors (568982496).

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

307090464 is a wasteful number, since it uses less digits than its factorization.

307090464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494 (or 5486 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 307090464 is about 17523.9968043823. The cubic root of 307090464 is about 674.6659263186.

The spelling of 307090464 in words is "three hundred seven million, ninety thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 31 32 38 48 57 62 76 93 96 114 124 152 186 228 248 304 372 456 496 589 608 744 912 992 1178 1488 1767 1824 2356 2976 3534 4712 5431 7068 9424 10862 14136 16293 18848 21724 28272 32586 43448 56544 65172 86896 103189 130344 168361 173792 206378 260688 309567 336722 412756 505083 521376 619134 673444 825512 1010166 1238268 1346888 1651024 2020332 2476536 2693776 3198859 3302048 4040664 4953072 5387552 6397718 8081328 9596577 9906144 12795436 16162656 19193154 25590872 38386308 51181744 76772616 102363488 153545232 307090464