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203130230120 = 23543118098971
BaseRepresentation
bin1011110100101110000…
…0010101010101101000
3201102022111100211222022
42331023200111111220
511312002314330440
6233152225444012
720450520316226
oct2751340252550
9642274324868
10203130230120
11791687a0444
123344baa0608
131620299cb4c
149b8db07b16
15543d18ecb5
hex2f4b815568

203130230120 has 32 divisors (see below), whose sum is σ = 467671929120. Its totient is φ = 79362507840.

The previous prime is 203130230119. The next prime is 203130230129. The reversal of 203130230120 is 21032031302.

It is not an unprimeable number, because it can be changed into a prime (203130230129) 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, 59047766 + ... + 59051205.

It is an arithmetic number, because the mean of its divisors is an integer number (14614747785).

Almost surely, 2203130230120 is an apocalyptic number.

203130230120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130230120 is an abundant number, since it is smaller than the sum of its proper divisors (264541699000).

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

203130230120 is a wasteful number, since it uses less digits than its factorization.

203130230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118099025 (or 118099021 counting only the distinct ones).

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

Adding to 203130230120 its reverse (21032031302), we get a palindrome (224162261422).

The spelling of 203130230120 in words is "two hundred three billion, one hundred thirty million, two hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 118098971 236197942 472395884 590494855 944791768 1180989710 2361979420 4723958840 5078255753 10156511506 20313023012 25391278765 40626046024 50782557530 101565115060 203130230120