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56899999 = 1323190301
BaseRepresentation
bin1101100100001…
…1100110011111
310222001211010101
43121003212133
5104031244444
65351321531
71260433132
oct331034637
9128054111
1056899999
112a1338a2
12170802a7
13ba32c50
1477b2219
154ede3d4
hex364399f

56899999 has 8 divisors (see below), whose sum is σ = 63941472. Its totient is φ = 50239200.

The previous prime is 56899993. The next prime is 56900021. The reversal of 56899999 is 99999865.

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 56899999 - 23 = 56899991 is a prime.

56899999 is a modest number, since divided by 9999 gives 5689 as remainder.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 56899999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56899991) 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, 94852 + ... + 95449.

It is an arithmetic number, because the mean of its divisors is an integer number (7992684).

Almost surely, 256899999 is an apocalyptic number.

56899999 is a deficient number, since it is larger than the sum of its proper divisors (7041473).

56899999 is a wasteful number, since it uses less digits than its factorization.

56899999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190337.

The product of its digits is 14171760, while the sum is 64.

The square root of 56899999 is about 7543.2087999737. The cubic root of 56899999 is about 384.6249205872.

The spelling of 56899999 in words is "fifty-six million, eight hundred ninety-nine thousand, nine hundred ninety-nine".

Divisors: 1 13 23 299 190301 2473913 4376923 56899999