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52137366 = 23233710211
BaseRepresentation
bin1100011011100…
…0110110010110
310122002212000120
43012320312112
5101321343431
65101252410
71202105661
oct306706626
9118085016
1052137366
1127480636
1215564106
13aa56218
146cd26d8
15489d196
hex31b8d96

52137366 has 32 divisors (see below), whose sum is σ = 111760128. Its totient is φ = 16172640.

The previous prime is 52137361. The next prime is 52137367. The reversal of 52137366 is 66373125.

52137366 is a nontrivial binomial coefficient, being equal to C(10212, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52137361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 10211.

It is an arithmetic number, because the mean of its divisors is an integer number (3492504).

Almost surely, 252137366 is an apocalyptic number.

52137366 is the 10211-st triangular number and also the 5106-th hexagonal number.

52137366 is an abundant number, since it is smaller than the sum of its proper divisors (59622762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52137366 is a wasteful number, since it uses less digits than its factorization.

52137366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276.

The product of its digits is 22680, while the sum is 33.

The square root of 52137366 is about 7220.6208874307. The cubic root of 52137366 is about 373.5794934462.

The spelling of 52137366 in words is "fifty-two million, one hundred thirty-seven thousand, three hundred sixty-six".

Divisors: 1 2 3 6 23 37 46 69 74 111 138 222 851 1702 2553 5106 10211 20422 30633 61266 234853 377807 469706 704559 755614 1133421 1409118 2266842 8689561 17379122 26068683 52137366