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390132276 = 223103439719
BaseRepresentation
bin10111010000001…
…111001000110100
31000012002202212120
4113100033020310
51244333213101
6102413515540
712445032612
oct2720171064
91005082776
10390132276
11190246176
12aa7a2bb0
1362a98001
1439b566b2
15243b4b36
hex1740f234

390132276 has 48 divisors (see below), whose sum is σ = 922521600. Its totient is φ = 128309472.

The previous prime is 390132247. The next prime is 390132293. The reversal of 390132276 is 672231093.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542245 + ... + 542963.

It is an arithmetic number, because the mean of its divisors is an integer number (19219200).

Almost surely, 2390132276 is an apocalyptic number.

It is an amenable number.

390132276 is an abundant number, since it is smaller than the sum of its proper divisors (532389324).

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

390132276 is a wasteful number, since it uses less digits than its factorization.

390132276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 390132276 is about 19751.7664020209. The cubic root of 390132276 is about 730.6969487060.

The spelling of 390132276 in words is "three hundred ninety million, one hundred thirty-two thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 103 206 309 412 439 618 719 878 1236 1317 1438 1756 2157 2634 2876 4314 5268 8628 45217 74057 90434 135651 148114 180868 222171 271302 296228 315641 444342 542604 631282 888684 946923 1262564 1893846 3787692 32511023 65022046 97533069 130044092 195066138 390132276