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20012132230 = 2538921112437
BaseRepresentation
bin10010101000110100…
…001110011110000110
31220122200100122112121
4102220310032132012
5311441101212410
613105441240154
71305630213556
oct225064163606
956580318477
1020012132230
11853a366162
123a6603305a
131b6c064b7c
14d7bb63166
157c1d659da
hex4a8d0e786

20012132230 has 32 divisors (see below), whose sum is σ = 36146373120. Its totient is φ = 7977217920.

The previous prime is 20012132221. The next prime is 20012132281. The reversal of 20012132230 is 3223121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8210572 + ... + 8213008.

It is an arithmetic number, because the mean of its divisors is an integer number (1129574160).

Almost surely, 220012132230 is an apocalyptic number.

20012132230 is a deficient number, since it is larger than the sum of its proper divisors (16134240890).

20012132230 is a wasteful number, since it uses less digits than its factorization.

20012132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012132230 its reverse (3223121002), we get a palindrome (23235253232).

The spelling of 20012132230 in words is "twenty billion, twelve million, one hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 389 778 1945 2111 2437 3890 4222 4874 10555 12185 21110 24370 821179 947993 1642358 1895986 4105895 4739965 5144507 8211790 9479930 10289014 25722535 51445070 2001213223 4002426446 10006066115 20012132230