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299911380 = 22356181943
BaseRepresentation
bin10001111000000…
…100100011010100
3202220100002001220
4101320010203110
51103234131010
645432050340
710301130126
oct2170044324
9686302056
10299911380
1114432394a
12845339b0
134a199672
142bb8d216
151b4e2970
hex11e048d4

299911380 has 48 divisors (see below), whose sum is σ = 853528704. Its totient is φ = 78664320.

The previous prime is 299911373. The next prime is 299911393. The reversal of 299911380 is 83119992.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37312 + ... + 44631.

It is an arithmetic number, because the mean of its divisors is an integer number (17781848).

Almost surely, 2299911380 is an apocalyptic number.

299911380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299911380 is an abundant number, since it is smaller than the sum of its proper divisors (553617324).

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

299911380 is a wasteful number, since it uses less digits than its factorization.

299911380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82016 (or 82014 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 299911380 is about 17317.9496476921. The cubic root of 299911380 is about 669.3670267593.

The spelling of 299911380 in words is "two hundred ninety-nine million, nine hundred eleven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 610 732 915 1220 1830 3660 81943 163886 245829 327772 409715 491658 819430 983316 1229145 1638860 2458290 4916580 4998523 9997046 14995569 19994092 24992615 29991138 49985230 59982276 74977845 99970460 149955690 299911380