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245142430 = 25131885711
BaseRepresentation
bin11101001110010…
…01001110011110
3122002021112012021
432213021032132
51000224024210
640154130354
76034450651
oct1647111636
9562245167
10245142430
11116416155
126a1209ba
133ba316c0
14247b3898
15167c4bda
hexe9c939e

245142430 has 16 divisors (see below), whose sum is σ = 475199424. Its totient is φ = 90514080.

The previous prime is 245142419. The next prime is 245142449. The reversal of 245142430 is 34241542.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 245142395 and 245142404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942726 + ... + 942985.

It is an arithmetic number, because the mean of its divisors is an integer number (29699964).

Almost surely, 2245142430 is an apocalyptic number.

245142430 is a deficient number, since it is larger than the sum of its proper divisors (230056994).

245142430 is a wasteful number, since it uses less digits than its factorization.

245142430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885731.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 245142430 is about 15657.0249409011. The cubic root of 245142430 is about 625.8537069641.

Adding to 245142430 its reverse (34241542), we get a palindrome (279383972).

The spelling of 245142430 in words is "two hundred forty-five million, one hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1885711 3771422 9428555 18857110 24514243 49028486 122571215 245142430