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52100142 = 2343120147
BaseRepresentation
bin1100011010111…
…1110000101110
310122000221221220
43012233300232
5101314201032
65100404210
71201562313
oct306576056
9118027856
1052100142
1127455676
1215546666
13aa422b3
146cc2d0a
15489212c
hex31afc2e

52100142 has 16 divisors (see below), whose sum is σ = 104447232. Its totient is φ = 17325560.

The previous prime is 52100137. The next prime is 52100177. The reversal of 52100142 is 24100125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7488 + ... + 12659.

It is an arithmetic number, because the mean of its divisors is an integer number (6527952).

Almost surely, 252100142 is an apocalyptic number.

52100142 is an abundant number, since it is smaller than the sum of its proper divisors (52347090).

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

52100142 is a wasteful number, since it uses less digits than its factorization.

52100142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20583.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52100142 is about 7218.0428095156. The cubic root of 52100142 is about 373.4905653260.

Adding to 52100142 its reverse (24100125), we get a palindrome (76200267).

The spelling of 52100142 in words is "fifty-two million, one hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 431 862 1293 2586 20147 40294 60441 120882 8683357 17366714 26050071 52100142