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331945084 = 22479173249
BaseRepresentation
bin10011110010010…
…001010001111100
3212010121120001101
4103302101101330
51134434220314
652534422444
711140325632
oct2362212174
9763546041
10331945084
11160413289
1293201a24
1353a04213
143212b352
151e21e174
hex13c9147c

331945084 has 12 divisors (see below), whose sum is σ = 582120000. Its totient is φ = 165625088.

The previous prime is 331945073. The next prime is 331945087. The reversal of 331945084 is 480549133.

It is a super-2 number, since 2×3319450842 = 220375077583534112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331945087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84709 + ... + 88540.

It is an arithmetic number, because the mean of its divisors is an integer number (48510000).

Almost surely, 2331945084 is an apocalyptic number.

It is an amenable number.

331945084 is a deficient number, since it is larger than the sum of its proper divisors (250174916).

331945084 is a wasteful number, since it uses less digits than its factorization.

331945084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173732 (or 173730 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 331945084 is about 18219.3601424419. The cubic root of 331945084 is about 692.3973766524.

The spelling of 331945084 in words is "three hundred thirty-one million, nine hundred forty-five thousand, eighty-four".

Divisors: 1 2 4 479 958 1916 173249 346498 692996 82986271 165972542 331945084