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470040047 = 2272070661
BaseRepresentation
bin11100000001000…
…011110111101111
31012202110111201122
4130001003313233
51430312240142
6114350331155
714435163101
oct3401036757
91182414648
10470040047
11221364054
121114b9abb
13764c5409
14465d7571
152b3eb1d2
hex1c043def

470040047 has 4 divisors (see below), whose sum is σ = 472110936. Its totient is φ = 467969160.

The previous prime is 470040023. The next prime is 470040083. The reversal of 470040047 is 740040074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740040074 = 2370020037.

It is a cyclic number.

It is not a de Polignac number, because 470040047 - 210 = 470039023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 470039998 and 470040025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470040247) 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, 1035104 + ... + 1035557.

It is an arithmetic number, because the mean of its divisors is an integer number (118027734).

Almost surely, 2470040047 is an apocalyptic number.

470040047 is a deficient number, since it is larger than the sum of its proper divisors (2070889).

470040047 is a wasteful number, since it uses less digits than its factorization.

470040047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070888.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 470040047 is about 21680.4069841874. The cubic root of 470040047 is about 777.5200917048.

The spelling of 470040047 in words is "four hundred seventy million, forty thousand, forty-seven".

Divisors: 1 227 2070661 470040047