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202030123230 = 232513547315677
BaseRepresentation
bin1011110000100111101…
…1110000100011011110
3201022110211022122000200
42330021323300203132
511302224202420410
6232451130404330
720411331466425
oct2741173604336
9638424278020
10202030123230
11787538128a1
12331a35906a6
1316088ab2620
149ac797c2bc
1553c67d73c0
hex2f09ef08de

202030123230 has 96 divisors (see below), whose sum is σ = 566720298144. Its totient is φ = 49639419648.

The previous prime is 202030123199. The next prime is 202030123231. The reversal of 202030123230 is 32321030202.

It is a happy number.

202030123230 is a `hidden beast` number, since 20 + 20 + 301 + 2 + 323 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202030123231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 482152 + ... + 797828.

It is an arithmetic number, because the mean of its divisors is an integer number (5903336439).

Almost surely, 2202030123230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202030123230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283360149072).

202030123230 is an abundant number, since it is smaller than the sum of its proper divisors (364690174914).

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

202030123230 is a wasteful number, since it uses less digits than its factorization.

202030123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316250 (or 316247 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 202030123230 its reverse (32321030202), we get a palindrome (234351153432).

The spelling of 202030123230 in words is "two hundred two billion, thirty million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 547 585 1094 1170 1641 2735 3282 4923 5470 7111 8205 9846 14222 16410 21333 24615 35555 42666 49230 63999 71110 106665 127998 213330 315677 319995 631354 639990 947031 1578385 1894062 2841093 3156770 4103801 4735155 5682186 8207602 9470310 12311403 14205465 20519005 24622806 28410930 36934209 41038010 61557015 73868418 123114030 172675319 184671045 345350638 369342090 518025957 863376595 1036051914 1554077871 1726753190 2244779147 2590129785 3108155742 4489558294 5180259570 6734337441 7770389355 11223895735 13468674882 15540778710 20203012323 22447791470 33671687205 40406024646 67343374410 101015061615 202030123230