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47075377 = 464310139
BaseRepresentation
bin1011001110010…
…1000000110001
310021120200021111
42303211000301
544022403002
64400553321
71111063666
oct263450061
9107520244
1047075377
1124633478
1213922841
1399a316b
146375a6d
1541ed3d7
hex2ce5031

47075377 has 4 divisors (see below), whose sum is σ = 47090160. Its totient is φ = 47060596.

The previous prime is 47075309. The next prime is 47075447. The reversal of 47075377 is 77357074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77357074 = 238678537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47075377 is a prime.

It is a super-2 number, since 2×470753772 = 4432182239384258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47078377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427 + ... + 9712.

It is an arithmetic number, because the mean of its divisors is an integer number (11772540).

Almost surely, 247075377 is an apocalyptic number.

It is an amenable number.

47075377 is a deficient number, since it is larger than the sum of its proper divisors (14783).

47075377 is a wasteful number, since it uses less digits than its factorization.

47075377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14782.

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 47075377 is about 6861.1498307499. The cubic root of 47075377 is about 361.0754287179.

The spelling of 47075377 in words is "forty-seven million, seventy-five thousand, three hundred seventy-seven".

Divisors: 1 4643 10139 47075377