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20125303 = 116189337
BaseRepresentation
bin100110011000…
…1011001110111
31101212110201121
41030301121313
520123002203
61555204411
7333030232
oct114613167
941773647
1020125303
11103a6490
1268a6707
134228483
14295c419
151b780bd
hex1331677

20125303 has 16 divisors (see below), whose sum is σ = 22632480. Its totient is φ = 17740800.

The previous prime is 20125289. The next prime is 20125307. The reversal of 20125303 is 30352102.

It is a de Polignac number, because none of the positive numbers 2k-20125303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125307) 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, 59551 + ... + 59887.

It is an arithmetic number, because the mean of its divisors is an integer number (1414530).

Almost surely, 220125303 is an apocalyptic number.

20125303 is a deficient number, since it is larger than the sum of its proper divisors (2507177).

20125303 is a wasteful number, since it uses less digits than its factorization.

20125303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20125303 is about 4486.1233821642. The cubic root of 20125303 is about 272.0074563628.

Adding to 20125303 its reverse (30352102), we get a palindrome (50477405).

The spelling of 20125303 in words is "twenty million, one hundred twenty-five thousand, three hundred three".

Divisors: 1 11 61 89 337 671 979 3707 5429 20557 29993 59719 226127 329923 1829573 20125303