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61148695 = 512229739
BaseRepresentation
bin1110100101000…
…0111000010111
311021001200020111
43221100320113
5111123224240
610022343451
71341520036
oct351207027
9137050214
1061148695
1131575a13
121858ab87
13c88ca7a
14819a71d
15557d1ea
hex3a50e17

61148695 has 4 divisors (see below), whose sum is σ = 73378440. Its totient is φ = 48918952.

The previous prime is 61148683. The next prime is 61148701. The reversal of 61148695 is 59684116.

61148695 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61148695 - 29 = 61148183 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 congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6114865 + ... + 6114874.

It is an arithmetic number, because the mean of its divisors is an integer number (18344610).

Almost surely, 261148695 is an apocalyptic number.

61148695 is a deficient number, since it is larger than the sum of its proper divisors (12229745).

61148695 is a wasteful number, since it uses less digits than its factorization.

61148695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12229744.

The product of its digits is 51840, while the sum is 40.

The square root of 61148695 is about 7819.7631038287. The cubic root of 61148695 is about 393.9693152944.

The spelling of 61148695 in words is "sixty-one million, one hundred forty-eight thousand, six hundred ninety-five".

Divisors: 1 5 12229739 61148695