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331026808 = 2375911193
BaseRepresentation
bin10011101110110…
…001000101111000
3212001212220102011
4103232301011320
51134220324213
652503015304
711126452510
oct2356610570
9761786364
10331026808
1115a946382
1292a3a534
1353772268
1431d6c840
151e0dc03d
hex13bb1178

331026808 has 16 divisors (see below), whose sum is σ = 709343280. Its totient is φ = 141868608.

The previous prime is 331026767. The next prime is 331026823. The reversal of 331026808 is 808620133.

It is a super-2 number, since 2×3310268082 = 219157495229337728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331026808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955541 + ... + 2955652.

It is an arithmetic number, because the mean of its divisors is an integer number (44333955).

Almost surely, 2331026808 is an apocalyptic number.

It is an amenable number.

331026808 is an abundant number, since it is smaller than the sum of its proper divisors (378316472).

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

331026808 is a wasteful number, since it uses less digits than its factorization.

331026808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911206 (or 5911202 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 331026808 is about 18194.1421342145. The cubic root of 331026808 is about 691.7583160373.

The spelling of 331026808 in words is "three hundred thirty-one million, twenty-six thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 28 56 5911193 11822386 23644772 41378351 47289544 82756702 165513404 331026808