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11212020230 = 251533173133
BaseRepresentation
bin10100111000100100…
…11101101000000110
31001221101101122022112
422130102131220012
5140430234121410
65052320301022
7544562412425
oct123422355006
931841348275
1011212020230
114833990824
12220aa71772
131098b2cbc8
147851012bc
154594c0105
hex29c49da06

11212020230 has 16 divisors (see below), whose sum is σ = 20183228784. Its totient is φ = 4484454240.

The previous prime is 11212020229. The next prime is 11212020257. The reversal of 11212020230 is 3202021211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116744 + ... + 189876.

It is an arithmetic number, because the mean of its divisors is an integer number (1261451799).

Almost surely, 211212020230 is an apocalyptic number.

11212020230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212020230 is a deficient number, since it is larger than the sum of its proper divisors (8971208554).

11212020230 is a wasteful number, since it uses less digits than its factorization.

11212020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88471.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11212020230 its reverse (3202021211), we get a palindrome (14414041441).

The spelling of 11212020230 in words is "eleven billion, two hundred twelve million, twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 15331 30662 73133 76655 146266 153310 365665 731330 1121202023 2242404046 5606010115 11212020230