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52129847 = 711677011
BaseRepresentation
bin1100011011011…
…1000000110111
310122002110201002
43012313000313
5101321123342
65101153515
71202045030
oct306670067
9118073632
1052129847
1127475a20
121555b89b
13aa52983
146ccda87
15489ad32
hex31b7037

52129847 has 8 divisors (see below), whose sum is σ = 64993152. Its totient is φ = 40620600.

The previous prime is 52129829. The next prime is 52129853. The reversal of 52129847 is 74892125.

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

It is a cyclic number.

It is not a de Polignac number, because 52129847 - 28 = 52129591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52129847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52129897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338429 + ... + 338582.

It is an arithmetic number, because the mean of its divisors is an integer number (8124144).

Almost surely, 252129847 is an apocalyptic number.

52129847 is a deficient number, since it is larger than the sum of its proper divisors (12863305).

52129847 is a wasteful number, since it uses less digits than its factorization.

52129847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677029.

The product of its digits is 40320, while the sum is 38.

The square root of 52129847 is about 7220.1002070608. The cubic root of 52129847 is about 373.5615339707.

The spelling of 52129847 in words is "fifty-two million, one hundred twenty-nine thousand, eight hundred forty-seven".

Divisors: 1 7 11 77 677011 4739077 7447121 52129847