Search a number
-
+
248880405 = 3516592027
BaseRepresentation
bin11101101010110…
…01110100010101
3122100022102201210
432311121310111
51002203133110
640410212033
76111306564
oct1665316425
9570272653
10248880405
11118539594
126b424019
133c73cc17
14250a7bdb
1516cb2520
hexed59d15

248880405 has 8 divisors (see below), whose sum is σ = 398208672. Its totient is φ = 132736208.

The previous prime is 248880367. The next prime is 248880409. The reversal of 248880405 is 504088842.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-248880405 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248880409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8295999 + ... + 8296028.

It is an arithmetic number, because the mean of its divisors is an integer number (49776084).

Almost surely, 2248880405 is an apocalyptic number.

It is an amenable number.

248880405 is a deficient number, since it is larger than the sum of its proper divisors (149328267).

248880405 is a wasteful number, since it uses less digits than its factorization.

248880405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16592035.

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 248880405 is about 15775.9438703363. The cubic root of 248880405 is about 629.0187167482.

The spelling of 248880405 in words is "two hundred forty-eight million, eight hundred eighty thousand, four hundred five".

Divisors: 1 3 5 15 16592027 49776081 82960135 248880405