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47048147 = 211222977
BaseRepresentation
bin1011001101111…
…0010111010011
310021112021220222
42303132113103
544021020042
64400223255
71110621416
oct263362723
9107467828
1047048147
1124614a73
121390ab2b
139993953
146369b7d
1541e52d2
hex2cde5d3

47048147 has 4 divisors (see below), whose sum is σ = 47271336. Its totient is φ = 46824960.

The previous prime is 47048143. The next prime is 47048167. The reversal of 47048147 is 74184074.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47048147 - 22 = 47048143 is a prime.

It is a super-2 number, since 2×470481472 = 4427056272267218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47048143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111278 + ... + 111699.

It is an arithmetic number, because the mean of its divisors is an integer number (11817834).

Almost surely, 247048147 is an apocalyptic number.

47048147 is a deficient number, since it is larger than the sum of its proper divisors (223189).

47048147 is a wasteful number, since it uses less digits than its factorization.

47048147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223188.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 47048147 is about 6859.1651824402. The cubic root of 47048147 is about 361.0057958518.

The spelling of 47048147 in words is "forty-seven million, forty-eight thousand, one hundred forty-seven".

Divisors: 1 211 222977 47048147