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249253060 = 22571780379
BaseRepresentation
bin11101101101101…
…00110011000100
3122101000100220211
432312310303010
51002302044220
640422205204
76114421210
oct1666646304
9571010824
10249253060
11118773571
126b583804
133c840724
1425163940
1516d37b5a
hexedb4cc4

249253060 has 24 divisors (see below), whose sum is σ = 598207680. Its totient is φ = 85458144.

The previous prime is 249253033. The next prime is 249253073. The reversal of 249253060 is 60352942.

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, 890050 + ... + 890329.

It is an arithmetic number, because the mean of its divisors is an integer number (24925320).

Almost surely, 2249253060 is an apocalyptic number.

249253060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249253060 is an abundant number, since it is smaller than the sum of its proper divisors (348954620).

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

249253060 is a wasteful number, since it uses less digits than its factorization.

249253060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780395 (or 1780393 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 249253060 is about 15787.7503147219. The cubic root of 249253060 is about 629.3325087917.

The spelling of 249253060 in words is "two hundred forty-nine million, two hundred fifty-three thousand, sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1780379 3560758 7121516 8901895 12462653 17803790 24925306 35607580 49850612 62313265 124626530 249253060