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299970148 = 22715110487
BaseRepresentation
bin10001111000010…
…010111001100100
3202220110001200111
4101320102321210
51103243021043
645433222404
710301463352
oct2170227144
9686401614
10299970148
11144364015
1284561a04
134a1ba33a
142bba67d2
151b50509d
hex11e12e64

299970148 has 12 divisors (see below), whose sum is σ = 525071232. Its totient is φ = 149949800.

The previous prime is 299970133. The next prime is 299970149. The reversal of 299970148 is 841079992.

It is a super-3 number, since 3×2999701483 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (299970149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23361 + ... + 33847.

It is an arithmetic number, because the mean of its divisors is an integer number (43755936).

Almost surely, 2299970148 is an apocalyptic number.

It is an amenable number.

299970148 is a deficient number, since it is larger than the sum of its proper divisors (225101084).

299970148 is a wasteful number, since it uses less digits than its factorization.

299970148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17642 (or 17640 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 299970148 is about 17319.6463012384. The cubic root of 299970148 is about 669.4107449985.

The spelling of 299970148 in words is "two hundred ninety-nine million, nine hundred seventy thousand, one hundred forty-eight".

Divisors: 1 2 4 7151 10487 14302 20974 28604 41948 74992537 149985074 299970148