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193248313 = 1071806059
BaseRepresentation
bin10111000010010…
…11110000111001
3111110122000211221
423201023300321
5343432421223
631101552041
74534404106
oct1341136071
9443560757
10193248313
119a0a1355
1254875621
133106211b
141b945aad
1511e73b5d
hexb84bc39

193248313 has 4 divisors (see below), whose sum is σ = 195054480. Its totient is φ = 191442148.

The previous prime is 193248311. The next prime is 193248331. The reversal of 193248313 is 313842391.

193248313 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313842391 = 893526319.

It is a cyclic number.

It is not a de Polignac number, because 193248313 - 21 = 193248311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193248311) 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, 902923 + ... + 903136.

It is an arithmetic number, because the mean of its divisors is an integer number (48763620).

Almost surely, 2193248313 is an apocalyptic number.

It is an amenable number.

193248313 is a deficient number, since it is larger than the sum of its proper divisors (1806167).

193248313 is a wasteful number, since it uses less digits than its factorization.

193248313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806166.

The product of its digits is 15552, while the sum is 34.

The square root of 193248313 is about 13901.3780971528. The cubic root of 193248313 is about 578.1473914016.

The spelling of 193248313 in words is "one hundred ninety-three million, two hundred forty-eight thousand, three hundred thirteen".

Divisors: 1 107 1806059 193248313