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23470661 = 47874903
BaseRepresentation
bin101100110001…
…0001001000101
31122011102200202
41121202021011
522002030121
62155020245
7403332404
oct131421105
948142622
1023470661
1112280945
127a3a685
134b2a086
14318d63b
1520d940b
hex1662245

23470661 has 4 divisors (see below), whose sum is σ = 23480352. Its totient is φ = 23460972.

The previous prime is 23470651. The next prime is 23470669. The reversal of 23470661 is 16607432.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23470661 - 218 = 23208517 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 (23470669) 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, 2336 + ... + 7238.

It is an arithmetic number, because the mean of its divisors is an integer number (5870088).

Almost surely, 223470661 is an apocalyptic number.

It is an amenable number.

23470661 is a deficient number, since it is larger than the sum of its proper divisors (9691).

23470661 is an equidigital number, since it uses as much as digits as its factorization.

23470661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9690.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23470661 is about 4844.6528255387. The cubic root of 23470661 is about 286.3134654572.

The spelling of 23470661 in words is "twenty-three million, four hundred seventy thousand, six hundred sixty-one".

Divisors: 1 4787 4903 23470661