Search a number
-
+
231057474 = 2338509579
BaseRepresentation
bin11011100010110…
…10100001000010
3121002202221021020
431301122201002
5433122314344
634532210310
75503645644
oct1561324102
9532687236
10231057474
1110947599a
1265469996
1338b3c6cb
1422988894
1515441719
hexdc5a842

231057474 has 8 divisors (see below), whose sum is σ = 462114960. Its totient is φ = 77019156.

The previous prime is 231057467. The next prime is 231057503. The reversal of 231057474 is 474750132.

It is a sphenic number, since it is the product of 3 distinct primes.

231057474 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19254784 + ... + 19254795.

It is an arithmetic number, because the mean of its divisors is an integer number (57764370).

Almost surely, 2231057474 is an apocalyptic number.

231057474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231057474 is a wasteful number, since it uses less digits than its factorization.

231057474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38509584.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 231057474 is about 15200.5747917636. The cubic root of 231057474 is about 613.6301269809.

The spelling of 231057474 in words is "two hundred thirty-one million, fifty-seven thousand, four hundred seventy-four".

Divisors: 1 2 3 6 38509579 77019158 115528737 231057474