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47357423 = 199237977
BaseRepresentation
bin1011010010100…
…1110111101111
310022010000011122
42310221313233
544110414143
64411011155
71113350201
oct264516757
9108100148
1047357423
1124806373
1213a39abb
139a71659
14640a771
154256c68
hex2d29def

47357423 has 4 divisors (see below), whose sum is σ = 47595600. Its totient is φ = 47119248.

The previous prime is 47357407. The next prime is 47357467. The reversal of 47357423 is 32475374.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32475374 = 216237687.

It is a cyclic number.

It is not a de Polignac number, because 47357423 - 24 = 47357407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47354423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118790 + ... + 119187.

It is an arithmetic number, because the mean of its divisors is an integer number (11898900).

Almost surely, 247357423 is an apocalyptic number.

47357423 is a deficient number, since it is larger than the sum of its proper divisors (238177).

47357423 is a wasteful number, since it uses less digits than its factorization.

47357423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238176.

The product of its digits is 70560, while the sum is 35.

The square root of 47357423 is about 6881.6729797339. The cubic root of 47357423 is about 361.7951055025.

The spelling of 47357423 in words is "forty-seven million, three hundred fifty-seven thousand, four hundred twenty-three".

Divisors: 1 199 237977 47357423