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30202131131 = 191918322439
BaseRepresentation
bin11100001000001011…
…111111001010111011
32212221211122020011022
4130020023333022323
5443323221144011
621512532253055
72116302610304
oct341013771273
985854566138
1030202131131
1111899352157
125a2a77118b
132b04217413
1416672237ab
15bbb7548db
hex7082ff2bb

30202131131 has 8 divisors (see below), whose sum is σ = 31958169600. Its totient is φ = 28462737960.

The previous prime is 30202131119. The next prime is 30202131139. The reversal of 30202131131 is 13113120203.

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

It is not a de Polignac number, because 30202131131 - 26 = 30202131067 is a prime.

It is a super-2 number, since 2×302021311312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30202131139) 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, 4157591 + ... + 4164848.

It is an arithmetic number, because the mean of its divisors is an integer number (3994771200).

Almost surely, 230202131131 is an apocalyptic number.

30202131131 is a deficient number, since it is larger than the sum of its proper divisors (1756038469).

30202131131 is a wasteful number, since it uses less digits than its factorization.

30202131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322649.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30202131131 its reverse (13113120203), we get a palindrome (43315251334).

The spelling of 30202131131 in words is "thirty billion, two hundred two million, one hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 19 191 3629 8322439 158126341 1589585849 30202131131