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202100311230 = 235163233177379
BaseRepresentation
bin1011110000111000011…
…1100000010010111110
3201022122201101112212020
42330032013200102332
511302400134424410
6232502115021010
720413143205236
oct2741607402276
9638581345766
10202100311230
117878a3a2104
1233202b9a766
131609a4b889c
149ad300ccc6
1553cca4da70
hex2f0e1e04be

202100311230 has 64 divisors (see below), whose sum is σ = 490113711360. Its totient is φ = 53332598016.

The previous prime is 202100311213. The next prime is 202100311241. The reversal of 202100311230 is 32113001202.

202100311230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2021003112302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1050681 + ... + 1228059.

It is an arithmetic number, because the mean of its divisors is an integer number (7658026740).

Almost surely, 2202100311230 is an apocalyptic number.

202100311230 is an abundant number, since it is smaller than the sum of its proper divisors (288013400130).

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

202100311230 is a wasteful number, since it uses less digits than its factorization.

202100311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177785.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 202100311230 its reverse (32113001202), we get a palindrome (234213312432).

The spelling of 202100311230 in words is "two hundred two billion, one hundred million, three hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 163 233 326 466 489 699 815 978 1165 1398 1630 2330 2445 3495 4890 6990 37979 75958 113937 177379 189895 227874 354758 379790 532137 569685 886895 1064274 1139370 1773790 2660685 5321370 28912777 41329307 57825554 82658614 86738331 123987921 144563885 173476662 206646535 247975842 289127770 413293070 433691655 619939605 867383310 1239879210 6736677041 13473354082 20210031123 33683385205 40420062246 67366770410 101050155615 202100311230