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331314220 = 225109379401
BaseRepresentation
bin10011101111110…
…111010000101100
3212002102111200001
4103233313100230
51134304023340
652513114044
711132060446
oct2357672054
9762374601
10331314220
11160022306
1292b58924
1353843023
1432005496
151e14729a
hex13bf742c

331314220 has 48 divisors (see below), whose sum is σ = 705751200. Its totient is φ = 130636800.

The previous prime is 331314211. The next prime is 331314257. The reversal of 331314220 is 22413133.

It is a super-2 number, since 2×3313142202 = 219538224748416800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826020 + ... + 826420.

It is an arithmetic number, because the mean of its divisors is an integer number (14703150).

Almost surely, 2331314220 is an apocalyptic number.

It is an amenable number.

331314220 is an abundant number, since it is smaller than the sum of its proper divisors (374436980).

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

331314220 is a wasteful number, since it uses less digits than its factorization.

331314220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 331314220 is about 18202.0388967830. The cubic root of 331314220 is about 691.9584630976.

Adding to 331314220 its reverse (22413133), we get a palindrome (353727353).

The spelling of 331314220 in words is "three hundred thirty-one million, three hundred fourteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 379 401 436 545 758 802 1090 1516 1604 1895 2005 2180 3790 4010 7580 8020 41311 43709 82622 87418 151979 165244 174836 206555 218545 303958 413110 437090 607916 759895 826220 874180 1519790 3039580 16565711 33131422 66262844 82828555 165657110 331314220