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47934669 = 315978223
BaseRepresentation
bin1011011011011…
…0110011001101
310100012100000010
42312312303031
544232402134
64431223433
71121303136
oct266666315
9110170003
1047934669
1125070032
1214077b79
139c14313
14651ac8d
15431cce9
hex2db6ccd

47934669 has 4 divisors (see below), whose sum is σ = 63912896. Its totient is φ = 31956444.

The previous prime is 47934661. The next prime is 47934671. The reversal of 47934669 is 96643974.

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.

It is not a de Polignac number, because 47934669 - 23 = 47934661 is a prime.

It is a super-2 number, since 2×479346692 = 4595464984279122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47934661) 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, 7989109 + ... + 7989114.

It is an arithmetic number, because the mean of its divisors is an integer number (15978224).

Almost surely, 247934669 is an apocalyptic number.

It is an amenable number.

47934669 is a deficient number, since it is larger than the sum of its proper divisors (15978227).

47934669 is a wasteful number, since it uses less digits than its factorization.

47934669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15978226.

The product of its digits is 979776, while the sum is 48.

The square root of 47934669 is about 6923.4867660739. The cubic root of 47934669 is about 363.2591627256.

The spelling of 47934669 in words is "forty-seven million, nine hundred thirty-four thousand, six hundred sixty-nine".

Divisors: 1 3 15978223 47934669