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331411420 = 22529571399
BaseRepresentation
bin10011110000001…
…110111111011100
3212002121110000001
4103300032333130
51134320131140
652515144044
711132644024
oct2360167734
9762543001
10331411420
1116008933a
1292ba5024
1353878342
143202ca84
151e165e9a
hex13c0efdc

331411420 has 24 divisors (see below), whose sum is σ = 719964000. Its totient is φ = 127993152.

The previous prime is 331411417. The next prime is 331411441. The reversal of 331411420 is 24114133.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 285120 + ... + 286279.

It is an arithmetic number, because the mean of its divisors is an integer number (29998500).

Almost surely, 2331411420 is an apocalyptic number.

It is an amenable number.

331411420 is an abundant number, since it is smaller than the sum of its proper divisors (388552580).

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

331411420 is a wasteful number, since it uses less digits than its factorization.

331411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571437 (or 571435 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 331411420 is about 18204.7087315343. The cubic root of 331411420 is about 692.0261247335.

Adding to 331411420 its reverse (24114133), we get a palindrome (355525553).

The spelling of 331411420 in words is "three hundred thirty-one million, four hundred eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 571399 1142798 2285596 2856995 5713990 11427980 16570571 33141142 66282284 82852855 165705710 331411420