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52349388 = 22371347939
BaseRepresentation
bin1100011110110…
…0100111001100
310122111121212020
43013230213030
5101400140023
65110010140
71203651060
oct307544714
9118447766
1052349388
1127605963
1215646950
13aacb890
146d49aa0
1548e0de3
hex31ec9cc

52349388 has 48 divisors (see below), whose sum is σ = 150339840. Its totient is φ = 13806144.

The previous prime is 52349387. The next prime is 52349393. The reversal of 52349388 is 88394325.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (52349383) 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, 22878 + ... + 25061.

It is an arithmetic number, because the mean of its divisors is an integer number (3132080).

Almost surely, 252349388 is an apocalyptic number.

It is an amenable number.

52349388 is an abundant number, since it is smaller than the sum of its proper divisors (97990452).

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

52349388 is a wasteful number, since it uses less digits than its factorization.

52349388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47966 (or 47964 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 52349388 is about 7235.2876929670. The cubic root of 52349388 is about 374.0852084540.

The spelling of 52349388 in words is "fifty-two million, three hundred forty-nine thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 47939 95878 143817 191756 287634 335573 575268 623207 671146 1006719 1246414 1342292 1869621 2013438 2492828 3739242 4026876 4362449 7478484 8724898 13087347 17449796 26174694 52349388