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61298793 = 3253128509
BaseRepresentation
bin1110100111010…
…1100001101001
311021100022010200
43221311201221
5111143030133
610025502413
71343013453
oct351654151
9137308120
1061298793
1131668766
1218641a09
13c91319a
1481d92d3
1555ac913
hex3a75869

61298793 has 12 divisors (see below), whose sum is σ = 90214020. Its totient is φ = 40094496.

The previous prime is 61298791. The next prime is 61298801. The reversal of 61298793 is 39789216.

It can be written as a sum of positive squares in 2 ways, for example, as 45522009 + 15776784 = 6747^2 + 3972^2 .

It is not a de Polignac number, because 61298793 - 21 = 61298791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61298791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63778 + ... + 64731.

It is an arithmetic number, because the mean of its divisors is an integer number (7517835).

Almost surely, 261298793 is an apocalyptic number.

It is an amenable number.

61298793 is a deficient number, since it is larger than the sum of its proper divisors (28915227).

61298793 is a wasteful number, since it uses less digits than its factorization.

61298793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128568 (or 128565 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 61298793 is about 7829.3545710997. The cubic root of 61298793 is about 394.2914027782.

The spelling of 61298793 in words is "sixty-one million, two hundred ninety-eight thousand, seven hundred ninety-three".

Divisors: 1 3 9 53 159 477 128509 385527 1156581 6810977 20432931 61298793