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331070620 = 22516553531
BaseRepresentation
bin10011101110111…
…011110010011100
3212001222010111211
4103232323302130
51134223224440
652503554204
711130024316
oct2356736234
9761863454
10331070620
1115a976291
1292a5b964
135378919a
1431d807b6
151e0e9eea
hex13bbbc9c

331070620 has 12 divisors (see below), whose sum is σ = 695248344. Its totient is φ = 132428240.

The previous prime is 331070609. The next prime is 331070633. The reversal of 331070620 is 26070133.

It is a junction number, because it is equal to n+sod(n) for n = 331070591 and 331070600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8276746 + ... + 8276785.

It is an arithmetic number, because the mean of its divisors is an integer number (57937362).

Almost surely, 2331070620 is an apocalyptic number.

It is an amenable number.

331070620 is an abundant number, since it is smaller than the sum of its proper divisors (364177724).

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

331070620 is a wasteful number, since it uses less digits than its factorization.

331070620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16553540 (or 16553538 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 331070620 is about 18195.3461082772. The cubic root of 331070620 is about 691.7888331813.

The spelling of 331070620 in words is "three hundred thirty-one million, seventy thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 16553531 33107062 66214124 82767655 165535310 331070620