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230021220222 = 23231481785577
BaseRepresentation
bin1101011000111001010…
…1010100011101111110
3210222201120111200112200
43112032111110131332
512232040413021342
6253400441012330
722422066053253
oct3261625243576
9728646450480
10230021220222
1189607a89302
12386b57840a6
13188c9c03c01
14b1c129142a
155eb3d9094c
hex358e55477e

230021220222 has 48 divisors (see below), whose sum is σ = 514568875392. Its totient is φ = 74184122880.

The previous prime is 230021220199. The next prime is 230021220227. The reversal of 230021220222 is 222022120032.

230021220222 is a `hidden beast` number, since 230 + 0 + 212 + 2 + 0 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 230021220195 and 230021220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230021220227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2645098 + ... + 2730674.

It is an arithmetic number, because the mean of its divisors is an integer number (10720184904).

Almost surely, 2230021220222 is an apocalyptic number.

230021220222 is an abundant number, since it is smaller than the sum of its proper divisors (284547655170).

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

230021220222 is a wasteful number, since it uses less digits than its factorization.

230021220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90433 (or 90430 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 230021220222 its reverse (222022120032), we get a palindrome (452043340254).

The spelling of 230021220222 in words is "two hundred thirty billion, twenty-one million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 4817 9634 14451 28902 43353 85577 86706 149327 171154 256731 298654 447981 513462 770193 895962 1343943 1540386 2652887 2687886 5305774 7958661 15917322 23875983 47751966 412224409 824448818 1236673227 2473346454 3710019681 7420039362 12778956679 25557913358 38336870037 76673740074 115010610111 230021220222