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203030000030 = 251113941150881
BaseRepresentation
bin1011110100010110000…
…1111111000110011110
3201102001111202122010202
42331011201333012132
511311301140000110
6233134245303502
720445162345224
oct2750541770636
9642044678122
10203030000030
1179117162060
1233422404b92
13161b7ca86c0
149b80696b14
1554344920a5
hex2f4587f19e

203030000030 has 64 divisors (see below), whose sum is σ = 429803672256. Its totient is φ = 68077056000.

The previous prime is 203030000029. The next prime is 203030000039. The reversal of 203030000030 is 30000030302.

It is a happy number.

203030000030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a junction number, because it is equal to n+sod(n) for n = 203029999966 and 203030000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203030000039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1270190 + ... + 1421070.

It is an arithmetic number, because the mean of its divisors is an integer number (6715682379).

Almost surely, 2203030000030 is an apocalyptic number.

203030000030 is an abundant number, since it is smaller than the sum of its proper divisors (226773672226).

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

203030000030 is a wasteful number, since it uses less digits than its factorization.

203030000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151853.

The product of its (nonzero) digits is 54, while the sum is 11.

Adding to 203030000030 its reverse (30000030302), we get a palindrome (233030030332).

The spelling of 203030000030 in words is "two hundred three billion, thirty million, thirty", and thus it is an aban number.

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 941 1430 1882 4705 9410 10351 12233 20702 24466 51755 61165 103510 122330 134563 150881 269126 301762 672815 754405 1345630 1508810 1659691 1961453 3319382 3922906 8298455 9807265 16596910 19614530 21575983 43151966 107879915 141979021 215759830 283958042 709895105 1419790210 1561769231 1845727273 3123538462 3691454546 7808846155 9228636365 15617692310 18457272730 20303000003 40606000006 101515000015 203030000030