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30122013102 = 2331161946307
BaseRepresentation
bin11100000011011010…
…010111000110101110
32212202020212210212220
4130003122113012232
5443142213404402
621500551140210
72114310613116
oct340332270656
985666783786
1030122013102
1111858100305
125a07974666
132ac07453bc
14165a72a046
15bb46cadbc
hex7036971ae

30122013102 has 16 divisors (see below), whose sum is σ = 62187382272. Its totient is φ = 9716778360.

The previous prime is 30122013101. The next prime is 30122013113. The reversal of 30122013102 is 20131022103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122013101) 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, 80972968 + ... + 80973339.

It is an arithmetic number, because the mean of its divisors is an integer number (3886711392).

Almost surely, 230122013102 is an apocalyptic number.

30122013102 is an abundant number, since it is smaller than the sum of its proper divisors (32065369170).

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

30122013102 is a wasteful number, since it uses less digits than its factorization.

30122013102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161946343.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30122013102 its reverse (20131022103), we get a palindrome (50253035205).

Subtracting from 30122013102 its reverse (20131022103), we obtain a palindrome (9990990999).

The spelling of 30122013102 in words is "thirty billion, one hundred twenty-two million, thirteen thousand, one hundred two".

Divisors: 1 2 3 6 31 62 93 186 161946307 323892614 485838921 971677842 5020335517 10040671034 15061006551 30122013102