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20268004 = 2222512
BaseRepresentation
bin100110101010…
…0001111100100
31102010201110211
41031110033210
520142034004
62002225204
7334163251
oct115241744
942121424
1020268004
1110493719
126955204
134278403
142998428
151ba5504
hex13543e4

20268004 has 9 divisors (see below), whose sum is σ = 35484771. Its totient is φ = 10129500.

The previous prime is 20267987. The next prime is 20268011. The reversal of 20268004 is 40086202.

The square root of 20268004 is 4502.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×202680042 = 821583972288032, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7879 + ... + 10129.

Almost surely, 220268004 is an apocalyptic number.

20268004 is the 4502-nd square number.

It is an amenable number.

20268004 is a deficient number, since it is larger than the sum of its proper divisors (15216767).

20268004 is an frugal number, since it uses more digits than its factorization.

20268004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The cubic root of 20268004 is about 272.6488438589.

The spelling of 20268004 in words is "twenty million, two hundred sixty-eight thousand, four".

Divisors: 1 2 4 2251 4502 9004 5067001 10134002 20268004