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245925124 = 2278412
BaseRepresentation
bin11101010100010…
…00010100000100
3122010202021211221
432222020110010
51000424100444
640223010124
76044220604
oct1652102404
9563667757
10245925124
11116900205
126a439944
133bc46a33
1424938c04
15168cba84
hexea88504

245925124 has 9 divisors (see below), whose sum is σ = 430423861. Its totient is φ = 122946880.

The previous prime is 245925107. The next prime is 245925143. The reversal of 245925124 is 421529542.

It is a happy number.

The square root of 245925124 is 15682.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 86155524 + 159769600 = 9282^2 + 12640^2 .

It is a super-2 number, since 2×2459251242 = 120958333228830752, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245925124.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 27444 + ... + 35284.

Almost surely, 2245925124 is an apocalyptic number.

245925124 is the 15682-nd square number.

It is an amenable number.

245925124 is a deficient number, since it is larger than the sum of its proper divisors (184498737).

245925124 is an frugal number, since it uses more digits than its factorization.

245925124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15686 (or 7843 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The cubic root of 245925124 is about 626.5190773352.

The spelling of 245925124 in words is "two hundred forty-five million, nine hundred twenty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 7841 15682 31364 61481281 122962562 245925124