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56106205 = 517660073
BaseRepresentation
bin1101011000000…
…1110011011101
310220120111020121
43112001303131
5103330344310
65322314541
71250615641
oct326016335
9126514217
1056106205
1129741471
1216958a51
13b81584c
147646c21
154dd40da
hex3581cdd

56106205 has 8 divisors (see below), whose sum is σ = 71287992. Its totient is φ = 42244608.

The previous prime is 56106181. The next prime is 56106229. The reversal of 56106205 is 50260165.

It is an interprime number because it is at equal distance from previous prime (56106181) and next prime (56106229).

It can be written as a sum of positive squares in 4 ways, for example, as 30492484 + 25613721 = 5522^2 + 5061^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56106205 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56106205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329952 + ... + 330121.

It is an arithmetic number, because the mean of its divisors is an integer number (8910999).

Almost surely, 256106205 is an apocalyptic number.

It is an amenable number.

56106205 is a deficient number, since it is larger than the sum of its proper divisors (15181787).

56106205 is a wasteful number, since it uses less digits than its factorization.

56106205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660095.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56106205 is about 7490.4075323042. The cubic root of 56106205 is about 382.8279443609.

The spelling of 56106205 in words is "fifty-six million, one hundred six thousand, two hundred five".

Divisors: 1 5 17 85 660073 3300365 11221241 56106205