Search a number
-
+
245223460 = 22541299053
BaseRepresentation
bin11101001110111…
…01000000100100
3122002102122100101
432213131000210
51000234122320
640155553444
76035236126
oct1647350044
9562378311
10245223460
11116471019
126a15b884
133ba5c551
14247d5216
15167ddc0a
hexe9dd024

245223460 has 24 divisors (see below), whose sum is σ = 527531256. Its totient is φ = 95696640.

The previous prime is 245223431. The next prime is 245223463. The reversal of 245223460 is 64322542.

245223460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4104676 + 241118784 = 2026^2 + 15528^2 .

It is not an unprimeable number, because it can be changed into a prime (245223463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148707 + ... + 150346.

It is an arithmetic number, because the mean of its divisors is an integer number (21980469).

Almost surely, 2245223460 is an apocalyptic number.

245223460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245223460 is an abundant number, since it is smaller than the sum of its proper divisors (282307796).

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

245223460 is a wasteful number, since it uses less digits than its factorization.

245223460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299103 (or 299101 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 245223460 is about 15659.6123834532. The cubic root of 245223460 is about 625.9226564578.

The spelling of 245223460 in words is "two hundred forty-five million, two hundred twenty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 299053 598106 1196212 1495265 2990530 5981060 12261173 24522346 49044692 61305865 122611730 245223460