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200231300421 = 32117127189947
BaseRepresentation
bin1011101001111010110…
…1110010110101000101
3201010211110111222000200
42322132231302311011
511240033203103141
6231552431401113
720315626654155
oct2723655626505
9633743458020
10200231300421
1177a10392679
1232981083199
1315b60215329
149996ad0765
15531d912ab6
hex2e9eb72d45

200231300421 has 12 divisors (see below), whose sum is σ = 289226981472. Its totient is φ = 133485691176.

The previous prime is 200231300393. The next prime is 200231300449. The reversal of 200231300421 is 124003132002.

It is an interprime number because it is at equal distance from previous prime (200231300393) and next prime (200231300449).

It is not a de Polignac number, because 200231300421 - 210 = 200231299397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200231300394 and 200231300403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200231300461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 959170 + ... + 1149116.

It is an arithmetic number, because the mean of its divisors is an integer number (24102248456).

Almost surely, 2200231300421 is an apocalyptic number.

It is an amenable number.

200231300421 is a deficient number, since it is larger than the sum of its proper divisors (88995681051).

200231300421 is a wasteful number, since it uses less digits than its factorization.

200231300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307080 (or 307077 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 200231300421 its reverse (124003132002), we get a palindrome (324234432423).

The spelling of 200231300421 in words is "two hundred billion, two hundred thirty-one million, three hundred thousand, four hundred twenty-one".

Divisors: 1 3 9 117127 189947 351381 569841 1054143 1709523 22247922269 66743766807 200231300421