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203100232130 = 25181112210073
BaseRepresentation
bin1011110100100110110…
…1111001100111000010
3201102020101220210110122
42331021231321213002
511311422124412010
6233145234500242
720450004326435
oct2751155714702
9642211823418
10203100232130
1179152871514
1233441a34682
13161c96c8a63
149b89b3981c
15543a716855
hex2f49b799c2

203100232130 has 16 divisors (see below), whose sum is σ = 367600202424. Its totient is φ = 80791251840.

The previous prime is 203100232123. The next prime is 203100232141. The reversal of 203100232130 is 31232001302.

203100232130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 166008168481 + 37092063649 = 407441^2 + 192593^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203100232099 and 203100232108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56103227 + ... + 56106846.

Almost surely, 2203100232130 is an apocalyptic number.

203100232130 is a deficient number, since it is larger than the sum of its proper divisors (164499970294).

203100232130 is a wasteful number, since it uses less digits than its factorization.

203100232130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112210261.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203100232130 its reverse (31232001302), we get a palindrome (234332233432).

The spelling of 203100232130 in words is "two hundred three billion, one hundred million, two hundred thirty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 181 362 905 1810 112210073 224420146 561050365 1122100730 20310023213 40620046426 101550116065 203100232130