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245501230 = 25132145267
BaseRepresentation
bin11101010001000…
…00110100101110
3122002221202101011
432220200310232
51000322014410
640205535434
76040504012
oct1650406456
9562852334
10245501230
11116640787
126a27457a
133bb28b00
1424868542
151684618a
hexea20d2e

245501230 has 24 divisors (see below), whose sum is σ = 478512792. Its totient is φ = 90645984.

The previous prime is 245501219. The next prime is 245501231. The reversal of 245501230 is 32105542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245501231) 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 11 ways as a sum of consecutive naturals, for example, 70944 + ... + 74323.

It is an arithmetic number, because the mean of its divisors is an integer number (19938033).

Almost surely, 2245501230 is an apocalyptic number.

245501230 is a deficient number, since it is larger than the sum of its proper divisors (233011562).

245501230 is a wasteful number, since it uses less digits than its factorization.

245501230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145300 (or 145287 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 245501230 is about 15668.4788668205. The cubic root of 245501230 is about 626.1588993953.

Adding to 245501230 its reverse (32105542), we get a palindrome (277606772).

The spelling of 245501230 in words is "two hundred forty-five million, five hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 169 338 845 1690 145267 290534 726335 1452670 1888471 3776942 9442355 18884710 24550123 49100246 122750615 245501230