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20030231222113 = 720717138121427
BaseRepresentation
bin1001000110111101001101…
…10100010001011101100001
32121220212112020211201010211
410203132212310101131201
510111133403143101423
6110333432230054121
74135064542123450
oct443364664213541
977825466751124
1020030231222113
116422856379722
1222b5babaaa341
13b23ac5545448
144d367b294b97
1524b073e3510d
hex1237a6d11761

20030231222113 has 8 divisors (see below), whose sum is σ = 22892797962432. Its totient is φ = 17167940766096.

The previous prime is 20030231222087. The next prime is 20030231222117. The reversal of 20030231222113 is 31122213203002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20030231222113 - 233 = 20021641287521 is a prime.

It is a super-2 number, since 2×200302312221132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20030231222117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68915695 + ... + 69205732.

It is an arithmetic number, because the mean of its divisors is an integer number (2861599745304).

Almost surely, 220030231222113 is an apocalyptic number.

It is an amenable number.

20030231222113 is a deficient number, since it is larger than the sum of its proper divisors (2862566740319).

20030231222113 is a wasteful number, since it uses less digits than its factorization.

20030231222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138142151.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20030231222113 its reverse (31122213203002), we get a palindrome (51152444425115).

The spelling of 20030231222113 in words is "twenty trillion, thirty billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred thirteen".

Divisors: 1 7 20717 145019 138121427 966849989 2861461603159 20030231222113