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299233980 = 22335554137
BaseRepresentation
bin10001110101011…
…111001010111100
3202212001122212000
4101311133022330
51103100441410
645405342300
710262306163
oct2165371274
9685048760
10299233980
11143a00a11
1284267990
1349cc0236
142ba543da
151b40bdc0
hex11d5f2bc

299233980 has 48 divisors (see below), whose sum is σ = 930951840. Its totient is φ = 79795584.

The previous prime is 299233969. The next prime is 299234009. The reversal of 299233980 is 89332992.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276529 + ... + 277608.

It is an arithmetic number, because the mean of its divisors is an integer number (19394830).

Almost surely, 2299233980 is an apocalyptic number.

299233980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299233980 is an abundant number, since it is smaller than the sum of its proper divisors (631717860).

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

299233980 is a wasteful number, since it uses less digits than its factorization.

299233980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554155 (or 554147 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 299233980 is about 17298.3808490853. The cubic root of 299233980 is about 668.8626877389.

The spelling of 299233980 in words is "two hundred ninety-nine million, two hundred thirty-three thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 554137 1108274 1662411 2216548 2770685 3324822 4987233 5541370 6649644 8312055 9974466 11082740 14961699 16624110 19948932 24936165 29923398 33248220 49872330 59846796 74808495 99744660 149616990 299233980