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213111133230 = 23510316890111
BaseRepresentation
bin1100011001111001101…
…0011101010000101110
3202101002002012021002110
43012132122131100232
511442422422230410
6241522451104450
721253043513142
oct3063632352056
9671062167073
10213111133230
118241a7516a6
12353765a2126
1317133731c88
14a4594d9222
155824529720
hex319e69d42e

213111133230 has 32 divisors (see below), whose sum is σ = 511962882048. Its totient is φ = 56774506400.

The previous prime is 213111133223. The next prime is 213111133241. The reversal of 213111133230 is 32331111312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213111133197 and 213111133206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3414126 + ... + 3475985.

It is an arithmetic number, because the mean of its divisors is an integer number (15998840064).

Almost surely, 2213111133230 is an apocalyptic number.

213111133230 is an abundant number, since it is smaller than the sum of its proper divisors (298851748818).

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

213111133230 is a wasteful number, since it uses less digits than its factorization.

213111133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891152.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213111133230 its reverse (32331111312), we get a palindrome (245442244542).

The spelling of 213111133230 in words is "two hundred thirteen billion, one hundred eleven million, one hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1031 2062 3093 5155 6186 10310 15465 30930 6890111 13780222 20670333 34450555 41340666 68901110 103351665 206703330 7103704441 14207408882 21311113323 35518522205 42622226646 71037044410 106555566615 213111133230