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304142201 = 1127649291
BaseRepresentation
bin10010001000001…
…101011101111001
3210012022000122222
4102020031131321
51110330022301
650102453425
710352110646
oct2210153571
9705260588
10304142201
111467535a0
1285a34275
134b01b2cc
142c570dcd
151ba7b31b
hex1220d779

304142201 has 4 divisors (see below), whose sum is σ = 331791504. Its totient is φ = 276492900.

The previous prime is 304142191. The next prime is 304142207. The reversal of 304142201 is 102241403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-304142201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 304142201.

It is not an unprimeable number, because it can be changed into a prime (304142207) 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, 13824635 + ... + 13824656.

It is an arithmetic number, because the mean of its divisors is an integer number (82947876).

Almost surely, 2304142201 is an apocalyptic number.

It is an amenable number.

304142201 is a deficient number, since it is larger than the sum of its proper divisors (27649303).

304142201 is a wasteful number, since it uses less digits than its factorization.

304142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27649302.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 304142201 is about 17439.6731907453. The cubic root of 304142201 is about 672.4999063031.

Adding to 304142201 its reverse (102241403), we get a palindrome (406383604).

The spelling of 304142201 in words is "three hundred four million, one hundred forty-two thousand, two hundred one".

Divisors: 1 11 27649291 304142201