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47140745 = 517554597
BaseRepresentation
bin1011001111010…
…0111110001001
310021200222221112
42303310332021
544032000440
64402220105
71111455401
oct263647611
9107628845
1047140745
11246785a3
1213954635
1399c6b42
146391801
154212965
hex2cf4f89

47140745 has 8 divisors (see below), whose sum is σ = 59896584. Its totient is φ = 35494144.

The previous prime is 47140733. The next prime is 47140757. The reversal of 47140745 is 54704174.

It is an interprime number because it is at equal distance from previous prime (47140733) and next prime (47140757).

It can be written as a sum of positive squares in 4 ways, for example, as 14969161 + 32171584 = 3869^2 + 5672^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47140745 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277214 + ... + 277383.

It is an arithmetic number, because the mean of its divisors is an integer number (7487073).

Almost surely, 247140745 is an apocalyptic number.

It is an amenable number.

47140745 is a deficient number, since it is larger than the sum of its proper divisors (12755839).

47140745 is a wasteful number, since it uses less digits than its factorization.

47140745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554619.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 47140745 is about 6865.9118112600. The cubic root of 47140745 is about 361.2424789804.

The spelling of 47140745 in words is "forty-seven million, one hundred forty thousand, seven hundred forty-five".

Divisors: 1 5 17 85 554597 2772985 9428149 47140745