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299919012280 = 23517441057371
BaseRepresentation
bin1000101110101001001…
…00001111000110111000
31001200010212112102110221
410113110210033012320
514403213231343110
6345440401145424
730445162353466
oct4272444170670
91050125472427
10299919012280
11106216510aa8
124a16232b274
1322389113a94
141073249d836
157c055127da
hex45d490f1b8

299919012280 has 32 divisors (see below), whose sum is σ = 714512942640. Its totient is φ = 112910686720.

The previous prime is 299919012269. The next prime is 299919012343. The reversal of 299919012280 is 82210919992.

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, 220528006 + ... + 220529365.

Almost surely, 2299919012280 is an apocalyptic number.

299919012280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299919012280 is an abundant number, since it is smaller than the sum of its proper divisors (414593930360).

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

299919012280 is a wasteful number, since it uses less digits than its factorization.

299919012280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441057399 (or 441057395 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 52.

The spelling of 299919012280 in words is "two hundred ninety-nine billion, nine hundred nineteen million, twelve thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 441057371 882114742 1764229484 2205286855 3528458968 4410573710 7497975307 8821147420 14995950614 17642294840 29991901228 37489876535 59983802456 74979753070 149959506140 299919012280