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420210102 = 23139535653
BaseRepresentation
bin11001000010111…
…110010110110110
31002021200212220010
4121002332112312
51330033210402
6105410321050
713261504224
oct3102762666
91067625803
10420210102
111a621a084
12b8889186
1369099540
143db45b14
1526d56a6c
hex190be5b6

420210102 has 32 divisors (see below), whose sum is σ = 906177888. Its totient is φ = 129136896.

The previous prime is 420210101. The next prime is 420210113. The reversal of 420210102 is 201012024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420210101) 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, 71508 + ... + 77160.

It is an arithmetic number, because the mean of its divisors is an integer number (28318059).

Almost surely, 2420210102 is an apocalyptic number.

420210102 is an abundant number, since it is smaller than the sum of its proper divisors (485967786).

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

420210102 is a wasteful number, since it uses less digits than its factorization.

420210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 420210102 is about 20499.0268549509. The cubic root of 420210102 is about 749.0120930690.

Adding to 420210102 its reverse (201012024), we get a palindrome (621222126).

The spelling of 420210102 in words is "four hundred twenty million, two hundred ten thousand, one hundred two".

Divisors: 1 2 3 6 13 26 39 78 953 1906 2859 5653 5718 11306 12389 16959 24778 33918 37167 73489 74334 146978 220467 440934 5387309 10774618 16161927 32323854 70035017 140070034 210105051 420210102