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20127250 = 2531113563
BaseRepresentation
bin100110011000…
…1111000010010
31101212120101201
41030301320102
520123033000
61555221414
7333036013
oct114617022
941776351
1020127250
11103a79a0
1268a786a
134229320
14295d00a
151b7896a
hex1331e12

20127250 has 64 divisors (see below), whose sum is σ = 44343936. Its totient is φ = 6744000.

The previous prime is 20127203. The next prime is 20127253. The reversal of 20127250 is 5272102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35469 + ... + 36031.

It is an arithmetic number, because the mean of its divisors is an integer number (692874).

Almost surely, 220127250 is an apocalyptic number.

20127250 is an abundant number, since it is smaller than the sum of its proper divisors (24216686).

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

20127250 is a wasteful number, since it uses less digits than its factorization.

20127250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20127250 is about 4486.3403794184. The cubic root of 20127250 is about 272.0162277660.

Adding to 20127250 its reverse (5272102), we get a palindrome (25399352).

The spelling of 20127250 in words is "twenty million, one hundred twenty-seven thousand, two hundred fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 55 65 110 125 130 143 250 275 286 325 550 563 650 715 1126 1375 1430 1625 2750 2815 3250 3575 5630 6193 7150 7319 12386 14075 14638 17875 28150 30965 35750 36595 61930 70375 73190 80509 140750 154825 161018 182975 309650 365950 402545 774125 805090 914875 1548250 1829750 2012725 4025450 10063625 20127250