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30331231100 = 2252887341953
BaseRepresentation
bin11100001111111000…
…011101101101111100
32220021211120012000122
4130033320131231330
5444104243343400
621533423314112
72122431132122
oct341770355574
986254505018
1030331231100
1111955209945
125a65a4b938
132b24ba9331
14167a42b912
15bc7c56685
hex70fe1db7c

30331231100 has 36 divisors (see below), whose sum is σ = 65893167984. Its totient is φ = 12118778880.

The previous prime is 30331231093. The next prime is 30331231103. The reversal of 30331231100 is 113213303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30331231103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82277 + ... + 259676.

Almost surely, 230331231100 is an apocalyptic number.

It is an amenable number.

30331231100 is an abundant number, since it is smaller than the sum of its proper divisors (35561936884).

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

30331231100 is a wasteful number, since it uses less digits than its factorization.

30331231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342854 (or 342847 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30331231100 its reverse (113213303), we get a palindrome (30444444403).

The spelling of 30331231100 in words is "thirty billion, three hundred thirty-one million, two hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 887 1774 3548 4435 8870 17740 22175 44350 88700 341953 683906 1367812 1709765 3419530 6839060 8548825 17097650 34195300 303312311 606624622 1213249244 1516561555 3033123110 6066246220 7582807775 15165615550 30331231100