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299997172 = 22531415081
BaseRepresentation
bin10001111000011…
…001011111110100
3202220111102202101
4101320121133310
51103244402142
645433551444
710301635216
oct2170313764
9686442671
10299997172
11144382352
1284575584
134a1c9727
142bbb25b6
151b50d0b7
hex11e197f4

299997172 has 12 divisors (see below), whose sum is σ = 534900996. Its totient is φ = 147168320.

The previous prime is 299997161. The next prime is 299997179. The reversal of 299997172 is 271799992.

It can be written as a sum of positive squares in 2 ways, for example, as 259725456 + 40271716 = 16116^2 + 6346^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299997179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707329 + ... + 707752.

It is an arithmetic number, because the mean of its divisors is an integer number (44575083).

Almost surely, 2299997172 is an apocalyptic number.

It is an amenable number.

299997172 is a deficient number, since it is larger than the sum of its proper divisors (234903824).

299997172 is a wasteful number, since it uses less digits than its factorization.

299997172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415138 (or 1415136 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 55.

The square root of 299997172 is about 17320.4264381683. The cubic root of 299997172 is about 669.4308465685.

The spelling of 299997172 in words is "two hundred ninety-nine million, nine hundred ninety-seven thousand, one hundred seventy-two".

Divisors: 1 2 4 53 106 212 1415081 2830162 5660324 74999293 149998586 299997172