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61406741 = 115582431
BaseRepresentation
bin1110101000111…
…1111000010101
311021112210012202
43222033320111
5111210003431
610032054245
71343643254
oct352177025
9137483182
1061406741
1131731880
1218694385
13c950366
14822679b
1555ce8cb
hex3a8fe15

61406741 has 4 divisors (see below), whose sum is σ = 66989184. Its totient is φ = 55824300.

The previous prime is 61406729. The next prime is 61406749. The reversal of 61406741 is 14760416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61406741 - 26 = 61406677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61406749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791205 + ... + 2791226.

It is an arithmetic number, because the mean of its divisors is an integer number (16747296).

Almost surely, 261406741 is an apocalyptic number.

It is an amenable number.

61406741 is a deficient number, since it is larger than the sum of its proper divisors (5582443).

61406741 is a wasteful number, since it uses less digits than its factorization.

61406741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582442.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61406741 is about 7836.2453381706. The cubic root of 61406741 is about 394.5227178718.

The spelling of 61406741 in words is "sixty-one million, four hundred six thousand, seven hundred forty-one".

Divisors: 1 11 5582431 61406741