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305422001 = 2467123803
BaseRepresentation
bin10010001101000…
…101111010110001
3210021201001012222
4102031011322301
51111142001001
650150130425
710366021103
oct2215057261
9707631188
10305422001
11147448085
1286350a15
134b3789a1
142c7c5573
151bc3061b
hex12345eb1

305422001 has 4 divisors (see below), whose sum is σ = 305548272. Its totient is φ = 305295732.

The previous prime is 305421967. The next prime is 305422021. The reversal of 305422001 is 100224503.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100224503 = 175895559.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-305422001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305422021) 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, 59435 + ... + 64368.

It is an arithmetic number, because the mean of its divisors is an integer number (76387068).

Almost surely, 2305422001 is an apocalyptic number.

It is an amenable number.

305422001 is a deficient number, since it is larger than the sum of its proper divisors (126271).

305422001 is a wasteful number, since it uses less digits than its factorization.

305422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126270.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 305422001 is about 17476.3268738027. The cubic root of 305422001 is about 673.4418571334.

Adding to 305422001 its reverse (100224503), we get a palindrome (405646504).

The spelling of 305422001 in words is "three hundred five million, four hundred twenty-two thousand, one".

Divisors: 1 2467 123803 305422001