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20200102 = 21353107137
BaseRepresentation
bin100110100001…
…1101010100110
31102000021022221
41031003222212
520132400402
62000542554
7333461266
oct115035246
942007287
1020200102
11104476aa
126921a5a
134253530
14297b7a6
151b90337
hex1343aa6

20200102 has 32 divisors (see below), whose sum is σ = 33802272. Its totient is φ = 8995584.

The previous prime is 20200099. The next prime is 20200109. The reversal of 20200102 is 20100202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200109) 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, 147378 + ... + 147514.

It is an arithmetic number, because the mean of its divisors is an integer number (1056321).

Almost surely, 220200102 is an apocalyptic number.

20200102 is a deficient number, since it is larger than the sum of its proper divisors (13602170).

20200102 is a wasteful number, since it uses less digits than its factorization.

20200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 20200102 is about 4494.4523581856. The cubic root of 20200102 is about 272.3440265562.

Adding to 20200102 its reverse (20100202), we get a palindrome (40300304).

It can be divided in two parts, 20200 and 102, that added together give a palindrome (20302).

The spelling of 20200102 in words is "twenty million, two hundred thousand, one hundred two".

Divisors: 1 2 13 26 53 106 107 137 214 274 689 1378 1391 1781 2782 3562 5671 7261 11342 14522 14659 29318 73723 94393 147446 188786 190567 381134 776927 1553854 10100051 20200102