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30002101131 = 310000700377
BaseRepresentation
bin11011111100010000…
…111011101110001011
32212102220020122120210
4123330100323232023
5442421014214011
621441025052203
72111323436412
oct337420735613
985386218523
1030002101131
11117a6449702
125993787063
132aa194c582
141648834479
15ba8de16a6
hex6fc43bb8b

30002101131 has 4 divisors (see below), whose sum is σ = 40002801512. Its totient is φ = 20001400752.

The previous prime is 30002101127. The next prime is 30002101139. The reversal of 30002101131 is 13110120003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13110120003 = 34370040001.

It is not a de Polignac number, because 30002101131 - 22 = 30002101127 is a prime.

It is a super-2 number, since 2×300021011312 (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 (30002101139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000350186 + ... + 5000350191.

It is an arithmetic number, because the mean of its divisors is an integer number (10000700378).

Almost surely, 230002101131 is an apocalyptic number.

30002101131 is a deficient number, since it is larger than the sum of its proper divisors (10000700381).

30002101131 is a wasteful number, since it uses less digits than its factorization.

30002101131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000700380.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 30002101131 its reverse (13110120003), we get a palindrome (43112221134).

The spelling of 30002101131 in words is "thirty billion, two million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 3 10000700377 30002101131