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61256801 = 1092512239
BaseRepresentation
bin1110100110101…
…1010001100001
311021021011112102
43221223101201
5111140204201
610024540145
71342450154
oct351532141
9137234472
1061256801
113163a161
1218621655
13c8ca038
1481c7c9b
1555a026b
hex3a6b461

61256801 has 8 divisors (see below), whose sum is σ = 62092800. Its totient is φ = 60426000.

The previous prime is 61256771. The next prime is 61256807. The reversal of 61256801 is 10865216.

It is a happy number.

61256801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-61256801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61256807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26240 + ... + 28478.

It is an arithmetic number, because the mean of its divisors is an integer number (7761600).

Almost surely, 261256801 is an apocalyptic number.

It is an amenable number.

61256801 is a deficient number, since it is larger than the sum of its proper divisors (835999).

61256801 is a wasteful number, since it uses less digits than its factorization.

61256801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 61256801 is about 7826.6724091404. The cubic root of 61256801 is about 394.2013473521.

The spelling of 61256801 in words is "sixty-one million, two hundred fifty-six thousand, eight hundred one".

Divisors: 1 109 251 2239 27359 244051 561989 61256801