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61254628793 = 4311312606427
BaseRepresentation
bin111001000011000011…
…110111010110111001
312212002221101112220022
4321003003313112321
52000422141110133
644050123140225
74265642516411
oct710303672671
9185087345808
1061254628793
1123a83706266
12ba56074675
135a1266a8a7
142d71363641
1518d797e998
hexe430f75b9

61254628793 has 8 divisors (see below), whose sum is σ = 63233842848. Its totient is φ = 59300627904.

The previous prime is 61254628753. The next prime is 61254628801. The reversal of 61254628793 is 39782645216.

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 61254628793 - 222 = 61250434489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61254628723) 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, 6298355 + ... + 6308072.

It is an arithmetic number, because the mean of its divisors is an integer number (7904230356).

Almost surely, 261254628793 is an apocalyptic number.

It is an amenable number.

61254628793 is a deficient number, since it is larger than the sum of its proper divisors (1979214055).

61254628793 is a wasteful number, since it uses less digits than its factorization.

61254628793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12606583.

The product of its digits is 4354560, while the sum is 53.

The spelling of 61254628793 in words is "sixty-one billion, two hundred fifty-four million, six hundred twenty-eight thousand, seven hundred ninety-three".

Divisors: 1 43 113 4859 12606427 542076361 1424526251 61254628793