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20068070 = 2511241757
BaseRepresentation
bin100110010001…
…1011011100110
31101202120012212
41030203123212
520114134240
61554043422
7332401331
oct114433346
941676185
1020068070
1110367490
126879572
1342083c9
142945618
151b66165
hex13236e6

20068070 has 32 divisors (see below), whose sum is σ = 39622176. Its totient is φ = 7257600.

The previous prime is 20068063. The next prime is 20068073. The reversal of 20068070 is 7086002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20068073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26132 + ... + 26888.

It is an arithmetic number, because the mean of its divisors is an integer number (1238193).

Almost surely, 220068070 is an apocalyptic number.

20068070 is a deficient number, since it is larger than the sum of its proper divisors (19554106).

20068070 is a wasteful number, since it uses less digits than its factorization.

20068070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 20068070 is about 4479.7399478095. The cubic root of 20068070 is about 271.7493636272.

The spelling of 20068070 in words is "twenty million, sixty-eight thousand, seventy".

Divisors: 1 2 5 10 11 22 55 110 241 482 757 1205 1514 2410 2651 3785 5302 7570 8327 13255 16654 26510 41635 83270 182437 364874 912185 1824370 2006807 4013614 10034035 20068070