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47068541 = 133620657
BaseRepresentation
bin1011001110001…
…1010101111101
310021120022220022
42303203111331
544022143131
64400501525
71111035032
oct263432575
9107508808
1047068541
1124629323
121391a8a5
1399a0010
146373389
1541eb37b
hex2ce357d

47068541 has 4 divisors (see below), whose sum is σ = 50689212. Its totient is φ = 43447872.

The previous prime is 47068523. The next prime is 47068547. The reversal of 47068541 is 14586074.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13764100 + 33304441 = 3710^2 + 5771^2 .

It is a de Polignac number, because none of the positive numbers 2k-47068541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47068547) 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, 1810316 + ... + 1810341.

It is an arithmetic number, because the mean of its divisors is an integer number (12672303).

Almost surely, 247068541 is an apocalyptic number.

It is an amenable number.

47068541 is a deficient number, since it is larger than the sum of its proper divisors (3620671).

47068541 is a wasteful number, since it uses less digits than its factorization.

47068541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620670.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 47068541 is about 6860.6516454343. The cubic root of 47068541 is about 361.0579501458.

The spelling of 47068541 in words is "forty-seven million, sixty-eight thousand, five hundred forty-one".

Divisors: 1 13 3620657 47068541