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56689227 = 3772232
BaseRepresentation
bin1101100001000…
…0001001001011
310221200010000000
43120100021023
5104003023402
65343014043
71255564500
oct330201113
9127603000
1056689227
1129aaa501
1216b9a323
13b98b02a
1477594a7
154e9bc1c
hex361024b

56689227 has 72 divisors (see below), whose sum is σ = 103388880. Its totient is φ = 30985416.

The previous prime is 56689223. The next prime is 56689231. The reversal of 56689227 is 72298665.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

56689227 is a `hidden beast` number, since 566 + 89 + 2 + 2 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (56689223) and next prime (56689231).

It is not a de Polignac number, because 56689227 - 22 = 56689223 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (362880) is a multiple of the sum of its prime factors (81).

It is not an unprimeable number, because it can be changed into a prime (56689223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2464738 + ... + 2464760.

Almost surely, 256689227 is an apocalyptic number.

56689227 is a deficient number, since it is larger than the sum of its proper divisors (46699653).

56689227 is an frugal number, since it uses more digits than its factorization.

56689227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 33 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 56689227 is about 7529.2248605019. The cubic root of 56689227 is about 384.1494169510.

The spelling of 56689227 in words is "fifty-six million, six hundred eighty-nine thousand, two hundred twenty-seven".

Divisors: 1 3 7 9 21 23 27 49 63 69 81 147 161 189 207 243 441 483 529 567 621 729 1127 1323 1449 1587 1701 1863 2187 3381 3703 3969 4347 4761 5103 5589 10143 11109 11907 13041 14283 15309 16767 25921 30429 33327 35721 39123 42849 50301 77763 91287 99981 107163 117369 128547 233289 273861 299943 352107 385641 699867 821583 899829 1156923 2099601 2464749 2699487 6298803 8098461 18896409 56689227