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299838040 = 23513157221
BaseRepresentation
bin10001110111110…
…010101001011000
3202220012100110121
4101313302221120
51103224304130
645430323024
710300403245
oct2167625130
9686170417
10299838040
11144283837
12844b9474
134a172178
142bb705cc
151b4cad7a
hex11df2a58

299838040 has 32 divisors (see below), whose sum is σ = 679797360. Its totient is φ = 119017600.

The previous prime is 299838017. The next prime is 299838053. The reversal of 299838040 is 40838992.

It is a happy number.

299838040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 23371 + ... + 33850.

Almost surely, 2299838040 is an apocalyptic number.

299838040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299838040 is an abundant number, since it is smaller than the sum of its proper divisors (379959320).

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

299838040 is a wasteful number, since it uses less digits than its factorization.

299838040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57363 (or 57359 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 299838040 is about 17315.8320620177. The cubic root of 299838040 is about 669.3124602183.

The spelling of 299838040 in words is "two hundred ninety-nine million, eight hundred thirty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 131 262 524 655 1048 1310 2620 5240 57221 114442 228884 286105 457768 572210 1144420 2288840 7495951 14991902 29983804 37479755 59967608 74959510 149919020 299838040