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47052811 = 132433643
BaseRepresentation
bin1011001101111…
…1100000001011
310021112112022201
42303133200023
544021142221
64400301031
71110641131
oct263374013
9107475281
1047052811
1124618523
1213911777
139995b00
14636b751
1541e6891
hex2cdf80b

47052811 has 12 divisors (see below), whose sum is σ = 51147768. Its totient is φ = 43265664.

The previous prime is 47052809. The next prime is 47052829. The reversal of 47052811 is 11825074.

It is not a de Polignac number, because 47052811 - 21 = 47052809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47052811.

It is not an unprimeable number, because it can be changed into a prime (47052011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72856 + ... + 73498.

It is an arithmetic number, because the mean of its divisors is an integer number (4262314).

Almost surely, 247052811 is an apocalyptic number.

47052811 is a deficient number, since it is larger than the sum of its proper divisors (4094957).

47052811 is a wasteful number, since it uses less digits than its factorization.

47052811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 47052811 is about 6859.5051570795. The cubic root of 47052811 is about 361.0177245922.

Adding to 47052811 its reverse (11825074), we get a palindrome (58877885).

The spelling of 47052811 in words is "forty-seven million, fifty-two thousand, eight hundred eleven".

Divisors: 1 13 169 433 643 5629 8359 73177 108667 278419 3619447 47052811