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230311212102 = 23216577721827
BaseRepresentation
bin1101011001111110011…
…1100011010001000110
3211000110210011210121200
43112133213203101012
512233134132241402
6253445320323330
722432220000526
oct3263747432106
9730423153550
10230311212102
1189746747514
1238776913546
131894500953a
14b20b9bb686
155ece57421c
hex359f9e3446

230311212102 has 24 divisors (see below), whose sum is σ = 499308842136. Its totient is φ = 76724063136.

The previous prime is 230311212091. The next prime is 230311212127. The reversal of 230311212102 is 201212113032.

230311212102 is a `hidden beast` number, since 230 + 311 + 2 + 121 + 0 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3831088 + ... + 3890739.

It is an arithmetic number, because the mean of its divisors is an integer number (20804535089).

Almost surely, 2230311212102 is an apocalyptic number.

230311212102 is an abundant number, since it is smaller than the sum of its proper divisors (268997630034).

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

230311212102 is a wasteful number, since it uses less digits than its factorization.

230311212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723492 (or 7723489 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 230311212102 its reverse (201212113032), we get a palindrome (431523325134).

The spelling of 230311212102 in words is "two hundred thirty billion, three hundred eleven million, two hundred twelve thousand, one hundred two".

Divisors: 1 2 3 6 9 18 1657 3314 4971 9942 14913 29826 7721827 15443654 23165481 46330962 69496443 138992886 12795067339 25590134678 38385202017 76770404034 115155606051 230311212102