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306012001 = 1213252277
BaseRepresentation
bin10010001111010…
…101111101100001
3210022211000112211
4102033111331201
51111314341001
650210522121
710404026161
oct2217257541
9708730484
10306012001
11147810389
1286596341
134b5243b9
142c8da5a1
151bcea351
hex123d5f61

306012001 has 4 divisors (see below), whose sum is σ = 306265492. Its totient is φ = 305758512.

The previous prime is 306011963. The next prime is 306012017. The reversal of 306012001 is 100210603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100210603 = 971033099.

It can be written as a sum of positive squares in 2 ways, for example, as 48441600 + 257570401 = 6960^2 + 16049^2 .

It is a cyclic number.

It is not a de Polignac number, because 306012001 - 27 = 306011873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306012071) 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, 124926 + ... + 127351.

It is an arithmetic number, because the mean of its divisors is an integer number (76566373).

Almost surely, 2306012001 is an apocalyptic number.

It is an amenable number.

306012001 is a deficient number, since it is larger than the sum of its proper divisors (253491).

306012001 is a wasteful number, since it uses less digits than its factorization.

306012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253490.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 306012001 is about 17493.1987069261. The cubic root of 306012001 is about 673.8752194107.

Adding to 306012001 its reverse (100210603), we get a palindrome (406222604).

The spelling of 306012001 in words is "three hundred six million, twelve thousand, one".

Divisors: 1 1213 252277 306012001