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149893299 = 3219876569
BaseRepresentation
bin10001110111100…
…11000010110011
3101110001100221200
420323303002303
5301333041144
622512422243
73500033463
oct1073630263
9343040850
10149893299
117767a066
1242247983
132509247a
1415c9bba3
15d25cc69
hex8ef30b3

149893299 has 12 divisors (see below), whose sum is σ = 227908200. Its totient is φ = 94669344.

The previous prime is 149893297. The next prime is 149893307. The reversal of 149893299 is 992398941.

It is not a de Polignac number, because 149893299 - 21 = 149893297 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (149893297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438114 + ... + 438455.

It is an arithmetic number, because the mean of its divisors is an integer number (18992350).

Almost surely, 2149893299 is an apocalyptic number.

149893299 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149893299 is a deficient number, since it is larger than the sum of its proper divisors (78014901).

149893299 is a wasteful number, since it uses less digits than its factorization.

149893299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876594 (or 876591 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 149893299 is about 12243.0918888980. The cubic root of 149893299 is about 531.2032694489.

The spelling of 149893299 in words is "one hundred forty-nine million, eight hundred ninety-three thousand, two hundred ninety-nine".

Divisors: 1 3 9 19 57 171 876569 2629707 7889121 16654811 49964433 149893299