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47396923 = 731218419
BaseRepresentation
bin1011010011001…
…1100000111011
310022012000100121
42310303200323
544113200143
64411514111
71113603310
oct264634073
9108160317
1047396923
1124833012
1213a58937
139a86622
14641ad07
1542637ed
hex2d3383b

47396923 has 8 divisors (see below), whose sum is σ = 55915520. Its totient is φ = 39315240.

The previous prime is 47396903. The next prime is 47396953. The reversal of 47396923 is 32969374.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47396923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47396923.

It is not an unprimeable number, because it can be changed into a prime (47396903) 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, 108993 + ... + 109426.

It is an arithmetic number, because the mean of its divisors is an integer number (6989440).

Almost surely, 247396923 is an apocalyptic number.

47396923 is a deficient number, since it is larger than the sum of its proper divisors (8518597).

47396923 is a wasteful number, since it uses less digits than its factorization.

47396923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218457.

The product of its digits is 244944, while the sum is 43.

The square root of 47396923 is about 6884.5423232049. The cubic root of 47396923 is about 361.8956665433.

The spelling of 47396923 in words is "forty-seven million, three hundred ninety-six thousand, nine hundred twenty-three".

Divisors: 1 7 31 217 218419 1528933 6770989 47396923