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230664070 = 257413739
BaseRepresentation
bin11011011111110…
…10011110000110
3121002000221121201
431233322132012
5433022222240
634515533114
75500420000
oct1557723606
9532027551
10230664070
1110922736a
12652ba19a
1338a32620
14228c5370
15153b4d9a
hexdbfa786

230664070 has 80 divisors (see below), whose sum is σ = 522330480. Its totient is φ = 72902592.

The previous prime is 230664067. The next prime is 230664097. The reversal of 230664070 is 70466032.

230664070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 311761 + ... + 312499.

It is an arithmetic number, because the mean of its divisors is an integer number (6529131).

Almost surely, 2230664070 is an apocalyptic number.

230664070 is an abundant number, since it is smaller than the sum of its proper divisors (291666410).

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

230664070 is an equidigital number, since it uses as much as digits as its factorization.

230664070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 230664070 is about 15187.6288471901. The cubic root of 230664070 is about 613.2816686816.

The spelling of 230664070 in words is "two hundred thirty million, six hundred sixty-four thousand, seventy".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 182 245 343 455 490 637 686 739 910 1274 1478 1715 2401 3185 3430 3695 4459 4802 5173 6370 7390 8918 9607 10346 12005 19214 22295 24010 25865 31213 36211 44590 48035 51730 62426 67249 72422 96070 134498 156065 181055 253477 312130 336245 362110 470743 506954 672490 941486 1267385 1774339 2353715 2534770 3295201 3548678 4707430 6590402 8871695 16476005 17743390 23066407 32952010 46132814 115332035 230664070