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470920049 = 881534529
BaseRepresentation
bin11100000100011…
…010101101110001
31012211010012212022
4130010122231301
51431023420144
6114421241225
714445516515
oct3404325561
91184105768
10470920049
11221905226
12111863215
1376742b22
1446786145
152b521cee
hex1c11ab71

470920049 has 4 divisors (see below), whose sum is σ = 471455460. Its totient is φ = 470384640.

The previous prime is 470920031. The next prime is 470920057. The reversal of 470920049 is 940029074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940029074 = 2470014537.

It can be written as a sum of positive squares in 2 ways, for example, as 254977024 + 215943025 = 15968^2 + 14695^2 .

It is a cyclic number.

It is not a de Polignac number, because 470920049 - 216 = 470854513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (470920069) 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, 266384 + ... + 268145.

It is an arithmetic number, because the mean of its divisors is an integer number (117863865).

Almost surely, 2470920049 is an apocalyptic number.

It is an amenable number.

470920049 is a deficient number, since it is larger than the sum of its proper divisors (535411).

470920049 is an equidigital number, since it uses as much as digits as its factorization.

470920049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535410.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 470920049 is about 21700.6923622266. The cubic root of 470920049 is about 778.0050097373.

The spelling of 470920049 in words is "four hundred seventy million, nine hundred twenty thousand, forty-nine".

Divisors: 1 881 534529 470920049