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20010212200 = 2352119095551
BaseRepresentation
bin10010101000101100…
…111001101101101000
31220122112202002202101
4102220230321231220
5311440103242300
613105332143144
71305604666036
oct225054715550
956575662671
1020010212200
118539274660
123a65467ab4
131b6b841c64
14d7b7c3556
157c1ad6b6a
hex4a8b39b68

20010212200 has 48 divisors (see below), whose sum is σ = 50753180160. Its totient is φ = 7276440000.

The previous prime is 20010212149. The next prime is 20010212293. The reversal of 20010212200 is 221201002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4545576 + ... + 4549975.

It is an arithmetic number, because the mean of its divisors is an integer number (1057357920).

Almost surely, 220010212200 is an apocalyptic number.

20010212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010212200 is an abundant number, since it is smaller than the sum of its proper divisors (30742967960).

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

20010212200 is a wasteful number, since it uses less digits than its factorization.

20010212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9095578 (or 9095569 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20010212200 its reverse (221201002), we get a palindrome (20231413202).

The spelling of 20010212200 in words is "twenty billion, ten million, two hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 9095551 18191102 36382204 45477755 72764408 90955510 100051061 181911020 200102122 227388775 363822040 400204244 454777550 500255305 800408488 909555100 1000510610 1819110200 2001021220 2501276525 4002042440 5002553050 10005106100 20010212200