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61234071 = 320411357
BaseRepresentation
bin1110100110010…
…1101110010111
311021020000100120
43221211232113
5111133442241
610024243023
71342323663
oct351455627
9137200316
1061234071
1131624078
1218610473
13c8bc8a2
1481bd8a3
155598666
hex3a65b97

61234071 has 4 divisors (see below), whose sum is σ = 81645432. Its totient is φ = 40822712.

The previous prime is 61234039. The next prime is 61234123. The reversal of 61234071 is 17043216.

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 61234071 - 25 = 61234039 is a prime.

It is a super-2 number, since 2×612340712 = 7499222902466082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61234571) 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, 10205676 + ... + 10205681.

It is an arithmetic number, because the mean of its divisors is an integer number (20411358).

Almost surely, 261234071 is an apocalyptic number.

61234071 is a deficient number, since it is larger than the sum of its proper divisors (20411361).

61234071 is a wasteful number, since it uses less digits than its factorization.

61234071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20411360.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 61234071 is about 7825.2201885953. The cubic root of 61234071 is about 394.1525837593.

Adding to 61234071 its reverse (17043216), we get a palindrome (78277287).

The spelling of 61234071 in words is "sixty-one million, two hundred thirty-four thousand, seventy-one".

Divisors: 1 3 20411357 61234071