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33070070 = 25111915823
BaseRepresentation
bin111111000100…
…1101111110110
32022020010121102
41332021233312
531431220240
63140450102
7551043125
oct176115766
968203542
1033070070
1117738040
12b0a9932
136b0b4b7
14456babc
152d83815
hex1f89bf6

33070070 has 32 divisors (see below), whose sum is σ = 68359680. Its totient is φ = 11391840.

The previous prime is 33070027. The next prime is 33070073. The reversal of 33070070 is 7007033.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33070073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5822 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (2136240).

Almost surely, 233070070 is an apocalyptic number.

33070070 is an abundant number, since it is smaller than the sum of its proper divisors (35289610).

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

33070070 is a wasteful number, since it uses less digits than its factorization.

33070070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15860.

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 33070070 is about 5750.6582231950. The cubic root of 33070070 is about 320.9802946596.

The spelling of 33070070 in words is "thirty-three million, seventy thousand, seventy".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 15823 31646 79115 158230 174053 300637 348106 601274 870265 1503185 1740530 3006370 3307007 6614014 16535035 33070070