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52350372 = 22321454177
BaseRepresentation
bin1100011110110…
…0110110100100
310122111200012200
43013230312210
5101400202442
65110014500
71203653664
oct307546644
9118450180
1052350372
1127606678
1215647430
13aacc169
146d4a1a4
1548e134c
hex31ecda4

52350372 has 18 divisors (see below), whose sum is σ = 132330198. Its totient is φ = 17450112.

The previous prime is 52350371. The next prime is 52350373. The reversal of 52350372 is 27305325.

It is an interprime number because it is at equal distance from previous prime (52350371) and next prime (52350373).

It can be written as a sum of positive squares in only one way, i.e., 49196196 + 3154176 = 7014^2 + 1776^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×523503722 = 5481122897076768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52350371) 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, 727053 + ... + 727124.

Almost surely, 252350372 is an apocalyptic number.

It is an amenable number.

52350372 is an abundant number, since it is smaller than the sum of its proper divisors (79979826).

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

52350372 is a wasteful number, since it uses less digits than its factorization.

52350372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454187 (or 1454182 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 52350372 is about 7235.3556927079. The cubic root of 52350372 is about 374.0875523052.

Adding to 52350372 its reverse (27305325), we get a palindrome (79655697).

The spelling of 52350372 in words is "fifty-two million, three hundred fifty thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 1454177 2908354 4362531 5816708 8725062 13087593 17450124 26175186 52350372