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47030147 = 232044789
BaseRepresentation
bin1011001101100…
…1111110000011
310021111101020022
42303121332003
544014431042
64400004055
71110515063
oct263317603
9107441208
1047030147
112460249a
121390062b
1399886b8
1463633a3
1541decd2
hex2cd9f83

47030147 has 4 divisors (see below), whose sum is σ = 49074960. Its totient is φ = 44985336.

The previous prime is 47030129. The next prime is 47030167. The reversal of 47030147 is 74103074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74103074 = 237051537.

It is a cyclic number.

It is not a de Polignac number, because 47030147 - 212 = 47026051 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47030167) 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, 1022372 + ... + 1022417.

It is an arithmetic number, because the mean of its divisors is an integer number (12268740).

Almost surely, 247030147 is an apocalyptic number.

47030147 is a deficient number, since it is larger than the sum of its proper divisors (2044813).

47030147 is a wasteful number, since it uses less digits than its factorization.

47030147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044812.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 47030147 is about 6857.8529438885. The cubic root of 47030147 is about 360.9597512953.

The spelling of 47030147 in words is "forty-seven million, thirty thousand, one hundred forty-seven".

Divisors: 1 23 2044789 47030147