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20014868 = 225003717
BaseRepresentation
bin100110001011…
…0011100010100
31101122212020102
41030112130110
520110433433
61552553232
7332060246
oct114263424
941585212
1020014868
1110330515
126852818
1341ba123
142930096
151b554e8
hex1316714

20014868 has 6 divisors (see below), whose sum is σ = 35026026. Its totient is φ = 10007432.

The previous prime is 20014861. The next prime is 20014877. The reversal of 20014868 is 86841002.

It can be written as a sum of positive squares in only one way, i.e., 14002564 + 6012304 = 3742^2 + 2452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20014868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014861) by changing a digit.

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, 2501855 + ... + 2501862.

It is an arithmetic number, because the mean of its divisors is an integer number (5837671).

Almost surely, 220014868 is an apocalyptic number.

It is an amenable number.

20014868 is a deficient number, since it is larger than the sum of its proper divisors (15011158).

20014868 is a wasteful number, since it uses less digits than its factorization.

20014868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003721 (or 5003719 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 20014868 is about 4473.7979391117. The cubic root of 20014868 is about 271.5090082671.

The spelling of 20014868 in words is "twenty million, fourteen thousand, eight hundred sixty-eight".

Divisors: 1 2 4 5003717 10007434 20014868