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101213418 = 2319887837
BaseRepresentation
bin1100000100001…
…10010011101010
321001110011201010
412002012103222
5201402312133
614013204350
72336204565
oct602062352
9231404633
10101213418
1152150159
1229a906b6
1317c79bc7
14d6294dc
158d44263
hex60864ea

101213418 has 16 divisors (see below), whose sum is σ = 213081120. Its totient is φ = 31962096.

The previous prime is 101213417. The next prime is 101213423. The reversal of 101213418 is 814312101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101213394 and 101213403.

It is not an unprimeable number, because it can be changed into a prime (101213417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443805 + ... + 444032.

It is an arithmetic number, because the mean of its divisors is an integer number (13317570).

Almost surely, 2101213418 is an apocalyptic number.

101213418 is an abundant number, since it is smaller than the sum of its proper divisors (111867702).

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

101213418 is a wasteful number, since it uses less digits than its factorization.

101213418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887861.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 101213418 is about 10060.4879603327. The cubic root of 101213418 is about 466.0287364008.

Adding to 101213418 its reverse (814312101), we get a palindrome (915525519).

The spelling of 101213418 in words is "one hundred one million, two hundred thirteen thousand, four hundred eighteen".

Divisors: 1 2 3 6 19 38 57 114 887837 1775674 2663511 5327022 16868903 33737806 50606709 101213418