Search a number
-
+
56865029 = 137359921
BaseRepresentation
bin1101100011101…
…1000100000101
310222000001011012
43120323010011
5104024140104
65350452005
71260226154
oct330730405
9128001135
1056865029
112a10a5a1
1217064005
13ba20060
1477a359b
154ed3d6e
hex363b105

56865029 has 8 divisors (see below), whose sum is σ = 62079192. Its totient is φ = 51770880.

The previous prime is 56865023. The next prime is 56865079. The reversal of 56865029 is 92056865.

It can be written as a sum of positive squares in 4 ways, for example, as 6880129 + 49984900 = 2623^2 + 7070^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56865029 - 224 = 40087813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56865023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29012 + ... + 30909.

It is an arithmetic number, because the mean of its divisors is an integer number (7759899).

Almost surely, 256865029 is an apocalyptic number.

It is an amenable number.

56865029 is a deficient number, since it is larger than the sum of its proper divisors (5214163).

56865029 is a wasteful number, since it uses less digits than its factorization.

56865029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60007.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 56865029 is about 7540.8904646600. The cubic root of 56865029 is about 384.5461092801.

The spelling of 56865029 in words is "fifty-six million, eight hundred sixty-five thousand, twenty-nine".

Divisors: 1 13 73 949 59921 778973 4374233 56865029