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245344238 = 2172424471
BaseRepresentation
bin11101001111110…
…10011111101110
3122002122210000122
432213322133232
51000302003423
640202324542
76036251216
oct1647723756
9562583018
10245344238
11116543837
126a1b9752
133baa2509
1424827246
15168148c8
hexe9fa7ee

245344238 has 12 divisors (see below), whose sum is σ = 390938712. Its totient is φ = 115455840.

The previous prime is 245344237. The next prime is 245344247. The reversal of 245344238 is 832443542.

It is a junction number, because it is equal to n+sod(n) for n = 245344198 and 245344207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245344237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211658 + ... + 212813.

It is an arithmetic number, because the mean of its divisors is an integer number (32578226).

Almost surely, 2245344238 is an apocalyptic number.

245344238 is a deficient number, since it is larger than the sum of its proper divisors (145594474).

245344238 is a wasteful number, since it uses less digits than its factorization.

245344238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424507 (or 424490 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 245344238 is about 15663.4682621698. The cubic root of 245344238 is about 626.0253998615.

The spelling of 245344238 in words is "two hundred forty-five million, three hundred forty-four thousand, two hundred thirty-eight".

Divisors: 1 2 17 34 289 578 424471 848942 7216007 14432014 122672119 245344238