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20474068 = 225118517
BaseRepresentation
bin100111000011…
…0100011010100
31102112012010211
41032012203110
520220132233
62010455204
7336012106
oct116064324
942465124
1020474068
111061451a
126a34504
13431b144
142a0d576
151be65cd
hex13868d4

20474068 has 6 divisors (see below), whose sum is σ = 35829626. Its totient is φ = 10237032.

The previous prime is 20474053. The next prime is 20474119. The reversal of 20474068 is 86047402.

It can be written as a sum of positive squares in only one way, i.e., 20232004 + 242064 = 4498^2 + 492^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2559255 + ... + 2559262.

Almost surely, 220474068 is an apocalyptic number.

It is an amenable number.

20474068 is a deficient number, since it is larger than the sum of its proper divisors (15355558).

20474068 is a wasteful number, since it uses less digits than its factorization.

20474068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118521 (or 5118519 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20474068 is about 4524.8279525304. The cubic root of 20474068 is about 273.5697333515.

The spelling of 20474068 in words is "twenty million, four hundred seventy-four thousand, sixty-eight".

Divisors: 1 2 4 5118517 10237034 20474068