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331201120 = 25513211567
BaseRepresentation
bin10011101111011…
…011101001100000
3212002012202112011
4103233123221200
51134241413440
652510442304
711131106635
oct2357335140
9762182464
10331201120
1115aa55338
1292b03394
13538036c3
1431db618c
151e1239ea
hex13bdba60

331201120 has 48 divisors (see below), whose sum is σ = 783554688. Its totient is φ = 132295680.

The previous prime is 331201111. The next prime is 331201133. The reversal of 331201120 is 21102133.

It is a self number, because there is not a number n which added to its sum of digits gives 331201120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210577 + ... + 212143.

It is an arithmetic number, because the mean of its divisors is an integer number (16324056).

Almost surely, 2331201120 is an apocalyptic number.

It is an amenable number.

331201120 is an abundant number, since it is smaller than the sum of its proper divisors (452353568).

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

331201120 is a wasteful number, since it uses less digits than its factorization.

331201120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2895 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 331201120 is about 18198.9318367865. The cubic root of 331201120 is about 691.8797166948.

Adding to 331201120 its reverse (21102133), we get a palindrome (352303253).

The spelling of 331201120 in words is "three hundred thirty-one million, two hundred one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1321 1567 2642 3134 5284 6268 6605 7835 10568 12536 13210 15670 21136 25072 26420 31340 42272 50144 52840 62680 105680 125360 211360 250720 2070007 4140014 8280028 10350035 16560056 20700070 33120112 41400140 66240224 82800280 165600560 331201120