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47378486 = 297244219
BaseRepresentation
bin1011010010111…
…1000000110110
310022011002001202
42310233000312
544112102421
64411252502
71113465461
oct264570066
9108132052
1047378486
1124820181
1213a4a132
139a7b10c
1464142d8
15425d10b
hex2d2f036

47378486 has 8 divisors (see below), whose sum is σ = 71800680. Its totient is φ = 23444928.

The previous prime is 47378483. The next prime is 47378501. The reversal of 47378486 is 68487374.

47378486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47378486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47378483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121916 + ... + 122303.

It is an arithmetic number, because the mean of its divisors is an integer number (8975085).

Almost surely, 247378486 is an apocalyptic number.

47378486 is a deficient number, since it is larger than the sum of its proper divisors (24422194).

47378486 is a wasteful number, since it uses less digits than its factorization.

47378486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244318.

The product of its digits is 903168, while the sum is 47.

The square root of 47378486 is about 6883.2031787533. The cubic root of 47378486 is about 361.8487356786.

The spelling of 47378486 in words is "forty-seven million, three hundred seventy-eight thousand, four hundred eighty-six".

Divisors: 1 2 97 194 244219 488438 23689243 47378486