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245241420 = 22354087357
BaseRepresentation
bin11101001111000…
…01011001001100
3122002110112222120
432213201121030
51000240211140
640200212540
76035342364
oct1647413114
9562415876
10245241420
11116483566
126a16a150
133ba67788
14247db9a4
15167e41d0
hexe9e164c

245241420 has 24 divisors (see below), whose sum is σ = 686676144. Its totient is φ = 65397696.

The previous prime is 245241413. The next prime is 245241421. The reversal of 245241420 is 24142542.

It is a happy number.

245241420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (245241421) 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, 2043619 + ... + 2043738.

It is an arithmetic number, because the mean of its divisors is an integer number (28611506).

Almost surely, 2245241420 is an apocalyptic number.

245241420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245241420 is an abundant number, since it is smaller than the sum of its proper divisors (441434724).

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

245241420 is a wasteful number, since it uses less digits than its factorization.

245241420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087369 (or 4087367 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 245241420 is about 15660.1858226523. The cubic root of 245241420 is about 625.9379368018.

Adding to 245241420 its reverse (24142542), we get a palindrome (269383962).

The spelling of 245241420 in words is "two hundred forty-five million, two hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4087357 8174714 12262071 16349428 20436785 24524142 40873570 49048284 61310355 81747140 122620710 245241420