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33485970 = 2357159457
BaseRepresentation
bin111111110111…
…1010010010010
32100000021010010
41333233102102
532033022340
63153415350
7554424510
oct177572222
970007103
1033485970
11179a1561
12b26a556
136c258ab
1446394b0
152e16b80
hex1fef492

33485970 has 32 divisors (see below), whose sum is σ = 91847808. Its totient is φ = 7653888.

The previous prime is 33485957. The next prime is 33485989. The reversal of 33485970 is 7958433.

It is a super-2 number, since 2×334859702 = 2242620373681800, which contains 22 as substring.

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, 79519 + ... + 79938.

It is an arithmetic number, because the mean of its divisors is an integer number (2870244).

Almost surely, 233485970 is an apocalyptic number.

33485970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33485970 is an abundant number, since it is smaller than the sum of its proper divisors (58361838).

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

33485970 is a wasteful number, since it uses less digits than its factorization.

33485970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159474.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 33485970 is about 5786.7063170685. The cubic root of 33485970 is about 322.3202772439.

The spelling of 33485970 in words is "thirty-three million, four hundred eighty-five thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 159457 318914 478371 797285 956742 1116199 1594570 2232398 2391855 3348597 4783710 5580995 6697194 11161990 16742985 33485970