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212030122031 = 7134156829301
BaseRepresentation
bin1100010101110111111…
…0101110100000101111
3202021021202002012111122
43011131332232200233
511433214202401111
6241223313211155
721214206205040
oct3053576564057
9667252065448
10212030122031
1181a15526a12
1235114560abb
1316cc079c390
14a395b008c7
1557ae694cdb
hex315dfae82f

212030122031 has 16 divisors (see below), whose sum is σ = 267325036608. Its totient is φ = 163668384000.

The previous prime is 212030122021. The next prime is 212030122049. The reversal of 212030122031 is 130221030212.

It is a cyclic number.

It is not a de Polignac number, because 212030122031 - 230 = 210956380207 is a prime.

It is a super-2 number, since 2×2120301220312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030122021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28410920 + ... + 28418381.

It is an arithmetic number, because the mean of its divisors is an integer number (16707814788).

Almost surely, 2212030122031 is an apocalyptic number.

212030122031 is a deficient number, since it is larger than the sum of its proper divisors (55294914577).

212030122031 is a wasteful number, since it uses less digits than its factorization.

212030122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56829362.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212030122031 its reverse (130221030212), we get a palindrome (342251152243).

The spelling of 212030122031 in words is "two hundred twelve billion, thirty million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 7 13 41 91 287 533 3731 56829301 397805107 738780913 2330001341 5171466391 16310009387 30290017433 212030122031