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214642556061 = 3967409318077
BaseRepresentation
bin1100011111100110110…
…0010111110010011101
3202112000210211121021120
43013321230113302131
512004041443243221
6242334434521153
721336020423553
oct3077154276235
9675023747246
10214642556061
11830361442aa
12357234361b9
1317318aa6a2b
14a562a5bbd3
1558b3bce5c6
hex31f9b17c9d

214642556061 has 16 divisors (see below), whose sum is σ = 286571877504. Its totient is φ = 142904228544.

The previous prime is 214642556039. The next prime is 214642556069. The reversal of 214642556061 is 160655246412.

It is not a de Polignac number, because 214642556061 - 26 = 214642555997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214642556069) 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, 11864755 + ... + 11882831.

It is an arithmetic number, because the mean of its divisors is an integer number (17910742344).

Almost surely, 2214642556061 is an apocalyptic number.

It is an amenable number.

214642556061 is a deficient number, since it is larger than the sum of its proper divisors (71929321443).

214642556061 is a wasteful number, since it uses less digits than its factorization.

214642556061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23140.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 214642556061 in words is "two hundred fourteen billion, six hundred forty-two million, five hundred fifty-six thousand, sixty-one".

Divisors: 1 3 967 2901 4093 12279 18077 54231 3957931 11873793 17480459 52441377 73989161 221967483 71547518687 214642556061