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420801307 = 2318295709
BaseRepresentation
bin11001000101001…
…110101100011011
31002022210220212121
4121011032230123
51330211120212
6105431122111
713266515653
oct3105165433
91068726777
10420801307
111a6593283
12b8b13337
1369245674
143dc5b363
1526e21d07
hex1914eb1b

420801307 has 4 divisors (see below), whose sum is σ = 439097040. Its totient is φ = 402505576.

The previous prime is 420801287. The next prime is 420801313. The reversal of 420801307 is 703108024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420801307 - 27 = 420801179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420801317) 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, 9147832 + ... + 9147877.

It is an arithmetic number, because the mean of its divisors is an integer number (109774260).

Almost surely, 2420801307 is an apocalyptic number.

420801307 is a deficient number, since it is larger than the sum of its proper divisors (18295733).

420801307 is a wasteful number, since it uses less digits than its factorization.

420801307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18295732.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 420801307 is about 20513.4421051173. The cubic root of 420801307 is about 749.3631969437.

The spelling of 420801307 in words is "four hundred twenty million, eight hundred one thousand, three hundred seven".

Divisors: 1 23 18295709 420801307