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20274070 = 254347149
BaseRepresentation
bin100110101010…
…1101110010110
31102011000210111
41031111232112
520142232240
62002313234
7334220035
oct115255626
942130714
1020274070
1110498233
12695881a
13427b0bb
14299a71c
151ba71ea
hex1355b96

20274070 has 16 divisors (see below), whose sum is σ = 37342800. Its totient is φ = 7920864.

The previous prime is 20274041. The next prime is 20274073. The reversal of 20274070 is 7047202.

It is a super-2 number, since 2×202740702 = 822075828729800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23145 + ... + 24004.

It is an arithmetic number, because the mean of its divisors is an integer number (2333925).

Almost surely, 220274070 is an apocalyptic number.

20274070 is a deficient number, since it is larger than the sum of its proper divisors (17068730).

20274070 is a wasteful number, since it uses less digits than its factorization.

20274070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47199.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 20274070 is about 4502.6736501772. The cubic root of 20274070 is about 272.6760414544.

The spelling of 20274070 in words is "twenty million, two hundred seventy-four thousand, seventy".

Divisors: 1 2 5 10 43 86 215 430 47149 94298 235745 471490 2027407 4054814 10137035 20274070