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53417252 = 2272272537
BaseRepresentation
bin1100101111000…
…1010100100100
310201111212200202
43023301110210
5102133323002
65144530032
71216016300
oct313612444
9121455622
1053417252
1128175199
1215a80918
13b0b3955
147146d00
154a52502
hex32f1524

53417252 has 18 divisors (see below), whose sum is σ = 108742662. Its totient is φ = 22893024.

The previous prime is 53417251. The next prime is 53417261. The reversal of 53417252 is 25271435.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50779876 + 2637376 = 7126^2 + 1624^2 .

It is a super-2 number, since 2×534172522 = 5706805622463008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53417251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136073 + ... + 136464.

It is an arithmetic number, because the mean of its divisors is an integer number (6041259).

Almost surely, 253417252 is an apocalyptic number.

It is an amenable number.

53417252 is an abundant number, since it is smaller than the sum of its proper divisors (55325410).

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

53417252 is a wasteful number, since it uses less digits than its factorization.

53417252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272555 (or 272546 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 53417252 is about 7308.7106934123. The cubic root of 53417252 is about 376.6117343165.

Adding to 53417252 its reverse (25271435), we get a palindrome (78688687).

The spelling of 53417252 in words is "fifty-three million, four hundred seventeen thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 98 196 272537 545074 1090148 1907759 3815518 7631036 13354313 26708626 53417252