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669480001 = 21125112641
BaseRepresentation
bin100111111001110…
…111010001000001
31201122202002220121
4213321313101001
52332341330001
6150233140241
722406325511
oct4771672101
91648662817
10669480001
113139a4263
1216825a681
13a8914818
1464cb1841
153db946a1
hex27e77441

669480001 has 8 divisors (see below), whose sum is σ = 675386208. Its totient is φ = 663600000.

The previous prime is 669479989. The next prime is 669480037. The reversal of 669480001 is 100084966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669480001 - 225 = 635925569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669480041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46641 + ... + 59281.

It is an arithmetic number, because the mean of its divisors is an integer number (84423276).

Almost surely, 2669480001 is an apocalyptic number.

It is an amenable number.

669480001 is a deficient number, since it is larger than the sum of its proper divisors (5906207).

669480001 is a wasteful number, since it uses less digits than its factorization.

669480001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13103.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 669480001 is about 25874.3116043693. The cubic root of 669480001 is about 874.8075771700.

The spelling of 669480001 in words is "six hundred sixty-nine million, four hundred eighty thousand, one".

Divisors: 1 211 251 12641 52961 2667251 3172891 669480001