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331132120 = 235111744269
BaseRepresentation
bin10011101111001…
…010110011011000
3212002002020212121
4103233022303120
51134232211440
652505151024
711130401524
oct2357126330
9762066777
10331132120
1115aa08510
1292a8b474
13537ab187
1431d98d84
151e10d34a
hex13bcacd8

331132120 has 64 divisors (see below), whose sum is σ = 860608800. Its totient is φ = 113326080.

The previous prime is 331132117. The next prime is 331132141. The reversal of 331132120 is 21231133.

It is a junction number, because it is equal to n+sod(n) for n = 331132094 and 331132103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14655 + ... + 29614.

Almost surely, 2331132120 is an apocalyptic number.

It is an amenable number.

331132120 is an abundant number, since it is smaller than the sum of its proper divisors (529476680).

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

331132120 is a wasteful number, since it uses less digits than its factorization.

331132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44308 (or 44304 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 331132120 is about 18197.0360223856. The cubic root of 331132120 is about 691.8316663178.

Adding to 331132120 its reverse (21231133), we get a palindrome (352363253).

The spelling of 331132120 in words is "three hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 17 20 22 34 40 44 55 68 85 88 110 136 170 187 220 340 374 440 680 748 935 1496 1870 3740 7480 44269 88538 177076 221345 354152 442690 486959 752573 885380 973918 1505146 1770760 1947836 2434795 3010292 3762865 3895672 4869590 6020584 7525730 8278303 9739180 15051460 16556606 19478360 30102920 33113212 41391515 66226424 82783030 165566060 331132120