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61928941 = 109756453
BaseRepresentation
bin1110110000111…
…1010111101101
311022112022112111
43230033113231
5111323211231
610051204021
71351246564
oct354172755
9138468474
1061928941
1131a59148
12188a6611
13caa3c59
148320bdb
1556844b1
hex3b0f5ed

61928941 has 4 divisors (see below), whose sum is σ = 61986492. Its totient is φ = 61871392.

The previous prime is 61928929. The next prime is 61928957. The reversal of 61928941 is 14982916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26574025 + 35354916 = 5155^2 + 5946^2 .

It is a cyclic number.

It is not a de Polignac number, because 61928941 - 215 = 61896173 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61928894 and 61928903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61928921) 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 3 ways as a sum of consecutive naturals, for example, 27130 + ... + 29323.

It is an arithmetic number, because the mean of its divisors is an integer number (15496623).

Almost surely, 261928941 is an apocalyptic number.

It is an amenable number.

61928941 is a deficient number, since it is larger than the sum of its proper divisors (57551).

61928941 is a wasteful number, since it uses less digits than its factorization.

61928941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57550.

The product of its digits is 31104, while the sum is 40.

The square root of 61928941 is about 7869.4943293709. The cubic root of 61928941 is about 395.6378968099.

The spelling of 61928941 in words is "sixty-one million, nine hundred twenty-eight thousand, nine hundred forty-one".

Divisors: 1 1097 56453 61928941