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538700052 = 223117951659
BaseRepresentation
bin100000000110111…
…110100100010100
31101112122210112210
4200012332210110
52100401400202
6125242113420
716230606042
oct4006764424
91345583483
10538700052
1125709a360
121304ab870
13877b5037
145178b392
153245ec6c
hex201be914

538700052 has 48 divisors (see below), whose sum is σ = 1388620800. Its totient is φ = 161172960.

The previous prime is 538700039. The next prime is 538700059. The reversal of 538700052 is 250007835.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 538699992 and 538700019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538700059) 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, 15402 + ... + 36257.

It is an arithmetic number, because the mean of its divisors is an integer number (28929600).

Almost surely, 2538700052 is an apocalyptic number.

It is an amenable number.

538700052 is an abundant number, since it is smaller than the sum of its proper divisors (849920748).

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

538700052 is a wasteful number, since it uses less digits than its factorization.

538700052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51756 (or 51754 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 538700052 is about 23209.9127960447. The cubic root of 538700052 is about 813.6713151589.

Adding to 538700052 its reverse (250007835), we get a palindrome (788707887).

The spelling of 538700052 in words is "five hundred thirty-eight million, seven hundred thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 79 132 158 237 316 474 869 948 1738 2607 3476 5214 10428 51659 103318 154977 206636 309954 568249 619908 1136498 1704747 2272996 3409494 4081061 6818988 8162122 12243183 16324244 24486366 44891671 48972732 89783342 134675013 179566684 269350026 538700052