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102230111420 = 22519269026609
BaseRepresentation
bin101111100110101100…
…0111011010010111100
3100202212120222201222222
41133031120323102330
53133331402031140
6114544110024512
710246233416033
oct1371530732274
9322776881888
10102230111420
113a3a0261898
12179907a8138
1398428549b8
144d3b2d971a
1529d4e035b5
hex17cd63b4bc

102230111420 has 24 divisors (see below), whose sum is σ = 225982352400. Its totient is φ = 38739831552.

The previous prime is 102230111411. The next prime is 102230111429. The reversal of 102230111420 is 24111032201.

It is an interprime number because it is at equal distance from previous prime (102230111411) and next prime (102230111429).

It is a super-2 number, since 2×1022301114202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102230111429) 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, 134512925 + ... + 134513684.

It is an arithmetic number, because the mean of its divisors is an integer number (9415931350).

Almost surely, 2102230111420 is an apocalyptic number.

102230111420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102230111420 is an abundant number, since it is smaller than the sum of its proper divisors (123752240980).

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

102230111420 is a wasteful number, since it uses less digits than its factorization.

102230111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269026637 (or 269026635 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102230111420 its reverse (24111032201), we get a palindrome (126341143621).

The spelling of 102230111420 in words is "one hundred two billion, two hundred thirty million, one hundred eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 269026609 538053218 1076106436 1345133045 2690266090 5111505571 5380532180 10223011142 20446022284 25557527855 51115055710 102230111420