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304019680 = 25512831481
BaseRepresentation
bin10010000111101…
…111100011100000
3210012001210121011
4102013233203200
51110312112210
650100110304
710351060516
oct2207574340
9705053534
10304019680
1114667a538
1285995394
134aca7603
142c53c4b6
151ba54d8a
hex121ef8e0

304019680 has 48 divisors (see below), whose sum is σ = 719291664. Its totient is φ = 121431040.

The previous prime is 304019671. The next prime is 304019693. The reversal of 304019680 is 86910403.

304019680 is a modest number, since divided by 19680 gives 3040 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204540 + ... + 206020.

It is an arithmetic number, because the mean of its divisors is an integer number (14985243).

Almost surely, 2304019680 is an apocalyptic number.

It is an amenable number.

304019680 is an abundant number, since it is smaller than the sum of its proper divisors (415271984).

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

304019680 is a wasteful number, since it uses less digits than its factorization.

With its successor (304019681) it forms an eRAP, since the sums of their prime factors are consecutive (2779 and 2780).

304019680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779 (or 2771 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 304019680 is about 17436.1601277345. The cubic root of 304019680 is about 672.4095906248.

The spelling of 304019680 in words is "three hundred four million, nineteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1283 1481 2566 2962 5132 5924 6415 7405 10264 11848 12830 14810 20528 23696 25660 29620 41056 47392 51320 59240 102640 118480 205280 236960 1900123 3800246 7600492 9500615 15200984 19001230 30401968 38002460 60803936 76004920 152009840 304019680