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320052030 = 23517757829
BaseRepresentation
bin10011000100111…
…001101100111110
3211022020022211220
4103010321230332
51123413131110
651431454210
710634253204
oct2304715476
9738208756
10320052030
1115472a911
128b227366
13513cbacc
1430713074
151d170370
hex13139b3e

320052030 has 64 divisors (see below), whose sum is σ = 815365440. Its totient is φ = 80123904.

The previous prime is 320052023. The next prime is 320052041. The reversal of 320052030 is 30250023.

320052030 = T431 + T432 + ... + T1259.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385656 + ... + 386484.

It is an arithmetic number, because the mean of its divisors is an integer number (12740085).

Almost surely, 2320052030 is an apocalyptic number.

320052030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320052030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407682720).

320052030 is an abundant number, since it is smaller than the sum of its proper divisors (495313410).

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

320052030 is a wasteful number, since it uses less digits than its factorization.

320052030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 320052030 is about 17889.9980435997. The cubic root of 320052030 is about 684.0274475152.

The spelling of 320052030 in words is "three hundred twenty million, fifty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 757 829 1514 1658 2271 2487 3785 4145 4542 4974 7570 8290 11355 12435 12869 14093 22710 24870 25738 28186 38607 42279 64345 70465 77214 84558 128690 140930 193035 211395 386070 422790 627553 1255106 1882659 3137765 3765318 6275530 9413295 10668401 18826590 21336802 32005203 53342005 64010406 106684010 160026015 320052030