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56155101 = 3106317609
BaseRepresentation
bin1101011000110…
…1101111011101
310220122222022120
43112031233131
5103333430401
65323333153
71251211332
oct326155735
9126588276
1056155101
1129775182
12169811b9
13b831b92
14765a989
154de3836
hex358dbdd

56155101 has 8 divisors (see below), whose sum is σ = 74948160. Its totient is φ = 37399392.

The previous prime is 56155039. The next prime is 56155103. The reversal of 56155101 is 10155165.

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

It is not a de Polignac number, because 56155101 - 217 = 56024029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56155103) 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, 5616 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (9368520).

Almost surely, 256155101 is an apocalyptic number.

It is an amenable number.

56155101 is a deficient number, since it is larger than the sum of its proper divisors (18793059).

56155101 is a wasteful number, since it uses less digits than its factorization.

56155101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18675.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 56155101 is about 7493.6707293555. The cubic root of 56155101 is about 382.9391223198.

The spelling of 56155101 in words is "fifty-six million, one hundred fifty-five thousand, one hundred one".

Divisors: 1 3 1063 3189 17609 52827 18718367 56155101