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30122032131 = 3217761258707
BaseRepresentation
bin11100000011011010…
…011011110000000011
32212202020220202222200
4130003122123300003
5443142220012011
621500551404243
72114311022442
oct340332336003
985666822880
1030122032131
1111858113634
125a07983683
132ac0750c69
14165a732d59
15bb46d1856
hex70369bc03

30122032131 has 24 divisors (see below), whose sum is σ = 46129706064. Its totient is φ = 18875189760.

The previous prime is 30122032117. The next prime is 30122032139. The reversal of 30122032131 is 13123022103.

It is not a de Polignac number, because 30122032131 - 29 = 30122031619 is a prime.

It is a super-2 number, since 2×301220321312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30122032139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12921 + ... + 245786.

It is an arithmetic number, because the mean of its divisors is an integer number (1922071086).

Almost surely, 230122032131 is an apocalyptic number.

30122032131 is a deficient number, since it is larger than the sum of its proper divisors (16007673933).

30122032131 is a wasteful number, since it uses less digits than its factorization.

30122032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259491 (or 259488 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30122032131 its reverse (13123022103), we get a palindrome (43245054234).

The spelling of 30122032131 in words is "thirty billion, one hundred twenty-two million, thirty-two thousand, one hundred thirty-one".

Divisors: 1 3 9 17 51 153 761 2283 6849 12937 38811 116433 258707 776121 2328363 4398019 13194057 39582171 196876027 590628081 1771884243 3346892459 10040677377 30122032131