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245402430 = 23571389891
BaseRepresentation
bin11101010000010…
…00101100111110
3122002202201211220
432220020230332
51000310334210
640203454210
76036612660
oct1650105476
9562681756
10245402430
11116583529
126a227366
133bac2b50
1424840530
1516826c70
hexea08b3e

245402430 has 64 divisors (see below), whose sum is σ = 724889088. Its totient is φ = 51776640.

The previous prime is 245402401. The next prime is 245402453. The reversal of 245402430 is 34204542.

245402430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 245402430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42216 + ... + 47675.

It is an arithmetic number, because the mean of its divisors is an integer number (11326392).

Almost surely, 2245402430 is an apocalyptic number.

245402430 is an abundant number, since it is smaller than the sum of its proper divisors (479486658).

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

245402430 is a wasteful number, since it uses less digits than its factorization.

245402430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89921.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 245402430 is about 15665.3257227547. The cubic root of 245402430 is about 626.0748905833.

Adding to 245402430 its reverse (34204542), we get a palindrome (279606972).

The spelling of 245402430 in words is "two hundred forty-five million, four hundred two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 89891 179782 269673 449455 539346 629237 898910 1168583 1258474 1348365 1887711 2337166 2696730 3146185 3505749 3775422 5842915 6292370 7011498 8180081 9438555 11685830 16360162 17528745 18877110 24540243 35057490 40900405 49080486 81800810 122701215 245402430