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102013211231 = 294877223197
BaseRepresentation
bin101111100000001110…
…1100001001001011111
3100202022110212001212122
41133000131201021133
53132410340224411
6114510401053155
710240660663001
oct1370035411137
9322273761778
10102013211231
113a299886538
12179300271bb
1398099311a9
144d1a598371
1529c0d5b9db
hex17c076125f

102013211231 has 8 divisors (see below), whose sum is σ = 105747618720. Its totient is φ = 98293251168.

The previous prime is 102013211221. The next prime is 102013211243. The reversal of 102013211231 is 132112310201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102013211231 is a prime.

It is a super-2 number, since 2×1020132112312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102013211221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3597476 + ... + 3625721.

It is an arithmetic number, because the mean of its divisors is an integer number (13218452340).

Almost surely, 2102013211231 is an apocalyptic number.

102013211231 is a deficient number, since it is larger than the sum of its proper divisors (3734407489).

102013211231 is an equidigital number, since it uses as much as digits as its factorization.

102013211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223713.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102013211231 its reverse (132112310201), we get a palindrome (234125521432).

The spelling of 102013211231 in words is "one hundred two billion, thirteen million, two hundred eleven thousand, two hundred thirty-one".

Divisors: 1 29 487 14123 7223197 209472713 3517696939 102013211231