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549142028284 = 221719934051991
BaseRepresentation
bin1111111110110110110…
…10100101111111111100
31221111102122121101221011
413333123122211333330
532444120324401114
61100134455245004
754450152140003
oct7773332457774
91844378541834
10549142028284
111a19873a4713
128a516679764
133ca2621ac15
141c815a17c3a
15e43eeee1c4
hex7fdb6a5ffc

549142028284 has 24 divisors (see below), whose sum is σ = 1018038678048. Its totient is φ = 258290050560.

The previous prime is 549142028251. The next prime is 549142028293. The reversal of 549142028284 is 482820241945.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890472 + ... + 2161519.

It is an arithmetic number, because the mean of its divisors is an integer number (42418278252).

Almost surely, 2549142028284 is an apocalyptic number.

It is an amenable number.

549142028284 is a deficient number, since it is larger than the sum of its proper divisors (468896649764).

549142028284 is a wasteful number, since it uses less digits than its factorization.

549142028284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054005 (or 4054003 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 549142028284 in words is "five hundred forty-nine billion, one hundred forty-two million, twenty-eight thousand, two hundred eighty-four".

Divisors: 1 2 4 17 34 68 1993 3986 7972 33881 67762 135524 4051991 8103982 16207964 68883847 137767694 275535388 8075618063 16151236126 32302472252 137285507071 274571014142 549142028284