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930343239 = 38747431
BaseRepresentation
bin110111011100111…
…110100101000111
32101211121100000000
4313130332211013
53401131440424
6232152252343
732024533650
oct6734764507
92354540000
10930343239
11438177711
1221b6a10b3
1311a98b977
148b7b8527
1556a223c9
hex3773e947

930343239 has 72 divisors (see below), whose sum is σ = 1632503808. Its totient is φ = 519106320.

The previous prime is 930343223. The next prime is 930343273. The reversal of 930343239 is 932343039.

It is not a de Polignac number, because 930343239 - 24 = 930343223 is a prime.

It is a super-2 number, since 2×9303432392 = 1731077084706022242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (930343339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2158354 + ... + 2158784.

It is an arithmetic number, because the mean of its divisors is an integer number (22673664).

Almost surely, 2930343239 is an apocalyptic number.

930343239 is a deficient number, since it is larger than the sum of its proper divisors (702160569).

930343239 is an frugal number, since it uses more digits than its factorization.

With its predecessor (930343238) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (509).

930343239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 36.

The square root of 930343239 is about 30501.5284698980. The cubic root of 930343239 is about 976.2200773392.

The spelling of 930343239 in words is "nine hundred thirty million, three hundred forty-three thousand, two hundred thirty-nine".

Divisors: 1 3 7 9 21 27 47 63 81 141 189 243 329 423 431 567 729 987 1269 1293 1701 2187 2961 3017 3807 3879 5103 6561 8883 9051 11421 11637 15309 20257 26649 27153 34263 34911 45927 60771 79947 81459 102789 104733 141799 182313 239841 244377 308367 314199 425397 546939 719523 733131 942597 1276191 1640817 2158569 2199393 2827791 3828573 4922451 6598179 11485719 14767353 19794537 34457157 44302059 103371471 132906177 310114413 930343239