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233413993 = 1912284947
BaseRepresentation
bin11011110100110…
…01110101101001
3121021012122210201
431322121311221
5434223221433
635054512201
75532662161
oct1572316551
9537178721
10233413993
1110a83542a
1266205661
13394861b7
1422ddd5a1
1515759a7d
hexde99d69

233413993 has 4 divisors (see below), whose sum is σ = 245698960. Its totient is φ = 221129028.

The previous prime is 233413987. The next prime is 233414047. The reversal of 233413993 is 399314332.

It is a happy number.

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 233413993 - 217 = 233282921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233413903) 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, 6142455 + ... + 6142492.

It is an arithmetic number, because the mean of its divisors is an integer number (61424740).

Almost surely, 2233413993 is an apocalyptic number.

It is an amenable number.

233413993 is a deficient number, since it is larger than the sum of its proper divisors (12284967).

233413993 is a wasteful number, since it uses less digits than its factorization.

233413993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12284966.

The product of its digits is 52488, while the sum is 37.

The square root of 233413993 is about 15277.8922957324. The cubic root of 233413993 is about 615.7091807996.

The spelling of 233413993 in words is "two hundred thirty-three million, four hundred thirteen thousand, nine hundred ninety-three".

Divisors: 1 19 12284947 233413993