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56227764 = 22319246613
BaseRepresentation
bin1101011001111…
…1011110110100
310220210122222210
43112133132310
5103343242024
65325053420
71251633225
oct326373664
9126718883
1056227764
112981482a
12169b7270
13b858c88
14767924c
154e0a129
hex359f7b4

56227764 has 24 divisors (see below), whose sum is σ = 138103840. Its totient is φ = 17756064.

The previous prime is 56227763. The next prime is 56227777. The reversal of 56227764 is 46772265.

It is a happy number.

It is a super-3 number, since 3×562277643 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56227763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123079 + ... + 123534.

Almost surely, 256227764 is an apocalyptic number.

It is an amenable number.

56227764 is an abundant number, since it is smaller than the sum of its proper divisors (81876076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56227764 is a wasteful number, since it uses less digits than its factorization.

56227764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246639 (or 246637 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 56227764 is about 7498.5174534704. The cubic root of 56227764 is about 383.1042216714.

The spelling of 56227764 in words is "fifty-six million, two hundred twenty-seven thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 246613 493226 739839 986452 1479678 2959356 4685647 9371294 14056941 18742588 28113882 56227764