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245290930 = 25233910487
BaseRepresentation
bin11101001111011…
…01011110110010
3122002120001220021
432213231132302
51000243302210
640201234054
76035636623
oct1647553662
9562501807
10245290930
11116507785
126a19292a
133ba84181
1424811a4a
1516803bda
hexe9ed7b2

245290930 has 16 divisors (see below), whose sum is σ = 441754560. Its totient is φ = 98065072.

The previous prime is 245290919. The next prime is 245290933. The reversal of 245290930 is 39092542.

It is not an unprimeable number, because it can be changed into a prime (245290933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18147 + ... + 28633.

It is an arithmetic number, because the mean of its divisors is an integer number (27609660).

Almost surely, 2245290930 is an apocalyptic number.

245290930 is a deficient number, since it is larger than the sum of its proper divisors (196463630).

245290930 is a wasteful number, since it uses less digits than its factorization.

245290930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 245290930 is about 15661.7665031758. The cubic root of 245290930 is about 625.9800559811.

The spelling of 245290930 in words is "two hundred forty-five million, two hundred ninety thousand, nine hundred thirty".

Divisors: 1 2 5 10 2339 4678 10487 11695 20974 23390 52435 104870 24529093 49058186 122645465 245290930