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200020131223 = 1176134137001
BaseRepresentation
bin1011101001001000100…
…0001111110110010111
3201010021202011110100021
42322102020033312113
511234120123144343
6231515445330011
720310454030423
oct2722210176627
9633252143307
10200020131223
1177912171080
1232922406907
1315b2854a243
149976a41b83
15530a0ee0ed
hex2e9220fd97

200020131223 has 16 divisors (see below), whose sum is σ = 218585747232. Its totient is φ = 181518400000.

The previous prime is 200020131149. The next prime is 200020131253. The reversal of 200020131223 is 322131020002.

It is a cyclic number.

It is not a de Polignac number, because 200020131223 - 225 = 199986576791 is a prime.

It is a super-2 number, since 2×2000201312232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200020131197 and 200020131206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020131253) 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, 28566723 + ... + 28573723.

It is an arithmetic number, because the mean of its divisors is an integer number (13661609202).

Almost surely, 2200020131223 is an apocalyptic number.

200020131223 is a deficient number, since it is larger than the sum of its proper divisors (18565616009).

200020131223 is a wasteful number, since it uses less digits than its factorization.

200020131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 200020131223 its reverse (322131020002), we get a palindrome (522151151225).

The spelling of 200020131223 in words is "two hundred billion, twenty million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 11 761 3413 7001 8371 37543 77011 2597293 5327761 23894413 28570223 58605371 262838543 18183648293 200020131223