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47372213 = 734919391
BaseRepresentation
bin1011010010110…
…1011110110101
310022010202110102
42310231132311
544111402323
64411203445
71113441260
oct264553665
9108122412
1047372213
1124816499
1213a46585
139a782c5
146411cd7
15425b328
hex2d2d7b5

47372213 has 8 divisors (see below), whose sum is σ = 54297600. Its totient is φ = 40486320.

The previous prime is 47372191. The next prime is 47372233. The reversal of 47372213 is 31227374.

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

It is not a de Polignac number, because 47372213 - 28 = 47371957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47372233) 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, 7253 + ... + 12138.

It is an arithmetic number, because the mean of its divisors is an integer number (6787200).

Almost surely, 247372213 is an apocalyptic number.

It is an amenable number.

47372213 is a deficient number, since it is larger than the sum of its proper divisors (6925387).

47372213 is a wasteful number, since it uses less digits than its factorization.

47372213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19747.

The product of its digits is 7056, while the sum is 29.

The square root of 47372213 is about 6882.7474891935. The cubic root of 47372213 is about 361.8327651577.

Adding to 47372213 its reverse (31227374), we get a palindrome (78599587).

The spelling of 47372213 in words is "forty-seven million, three hundred seventy-two thousand, two hundred thirteen".

Divisors: 1 7 349 2443 19391 135737 6767459 47372213