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52210399 = 337154927
BaseRepresentation
bin1100011100101…
…0101011011111
310122020120012111
43013022223133
5101331213044
65103014451
71202531623
oct307125337
9118216174
1052210399
112752049a
121559a427
13aa80537
146d11183
1548b4b34
hex31caadf

52210399 has 4 divisors (see below), whose sum is σ = 52365664. Its totient is φ = 52055136.

The previous prime is 52210393. The next prime is 52210409. The reversal of 52210399 is 99301225.

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

It is a cyclic number.

It is not a de Polignac number, because 52210399 - 219 = 51686111 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 52210399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52210393) 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, 77127 + ... + 77800.

It is an arithmetic number, because the mean of its divisors is an integer number (13091416).

Almost surely, 252210399 is an apocalyptic number.

52210399 is a deficient number, since it is larger than the sum of its proper divisors (155265).

52210399 is a wasteful number, since it uses less digits than its factorization.

52210399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155264.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 52210399 is about 7225.6763697248. The cubic root of 52210399 is about 373.7538463380.

The spelling of 52210399 in words is "fifty-two million, two hundred ten thousand, three hundred ninety-nine".

Divisors: 1 337 154927 52210399