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47388275 = 5211172321
BaseRepresentation
bin1011010011000…
…1011001110011
310022011120111022
42310301121303
544112411100
64411410055
71113536144
oct264613163
9108146438
1047388275
1124827570
1213a5392b
139a826cc
146417acb
154260e85
hex2d31673

47388275 has 12 divisors (see below), whose sum is σ = 64103784. Its totient is φ = 34464000.

The previous prime is 47388259. The next prime is 47388287. The reversal of 47388275 is 57288374.

It is a happy number.

It is not a de Polignac number, because 47388275 - 24 = 47388259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85886 + ... + 86435.

It is an arithmetic number, because the mean of its divisors is an integer number (5341982).

Almost surely, 247388275 is an apocalyptic number.

47388275 is a deficient number, since it is larger than the sum of its proper divisors (16715509).

47388275 is a wasteful number, since it uses less digits than its factorization.

47388275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172342 (or 172337 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 47388275 is about 6883.9142208485. The cubic root of 47388275 is about 361.8736548184.

Subtracting 47388275 from its reverse (57288374), we obtain a palindrome (9900099).

The spelling of 47388275 in words is "forty-seven million, three hundred eighty-eight thousand, two hundred seventy-five".

Divisors: 1 5 11 25 55 275 172321 861605 1895531 4308025 9477655 47388275