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245033988 = 223171637369
BaseRepresentation
bin11101001101011…
…10110000000100
3122002002000102220
432212232300010
51000212041423
640151532340
76033516543
oct1646566004
9562060386
10245033988
11116351731
126a08a0b0
133b9c4234
142478615a
15167a29e3
hexe9aec04

245033988 has 48 divisors (see below), whose sum is σ = 609174720. Its totient is φ = 76391424.

The previous prime is 245033939. The next prime is 245033989. The reversal of 245033988 is 889330542.

It is not an unprimeable number, because it can be changed into a prime (245033989) 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 15 ways as a sum of consecutive naturals, for example, 29568 + ... + 36936.

It is an arithmetic number, because the mean of its divisors is an integer number (12691140).

Almost surely, 2245033988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245033988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304587360).

245033988 is an abundant number, since it is smaller than the sum of its proper divisors (364140732).

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

245033988 is a wasteful number, since it uses less digits than its factorization.

245033988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556 (or 7554 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 245033988 is about 15653.5615116816. The cubic root of 245033988 is about 625.7614084614.

The spelling of 245033988 in words is "two hundred forty-five million, thirty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 163 204 326 489 652 978 1956 2771 5542 7369 8313 11084 14738 16626 22107 29476 33252 44214 88428 125273 250546 375819 501092 751638 1201147 1503276 2402294 3603441 4804588 7206882 14413764 20419499 40838998 61258497 81677996 122516994 245033988