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28746142011 = 3219971599407
BaseRepresentation
bin11010110001011001…
…110101000100111011
32202012100221022120100
4122301121311010323
5432333003021021
621112241330443
72035233114126
oct326131650473
982170838510
1028746142011
11112114a1a64
1256a3036a23
1329316944b2
141569ad93bd
15b33a00626
hex6b167513b

28746142011 has 12 divisors (see below), whose sum is σ = 41543023392. Its totient is φ = 19154486256.

The previous prime is 28746141943. The next prime is 28746142037. The reversal of 28746142011 is 11024164782.

It is a happy number.

28746142011 is a `hidden beast` number, since 2 + 8 + 7 + 4 + 614 + 20 + 11 = 666.

It is not a de Polignac number, because 28746142011 - 29 = 28746141499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28746142211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 781731 + ... + 817676.

It is an arithmetic number, because the mean of its divisors is an integer number (3461918616).

Almost surely, 228746142011 is an apocalyptic number.

28746142011 is a deficient number, since it is larger than the sum of its proper divisors (12796881381).

28746142011 is a wasteful number, since it uses less digits than its factorization.

28746142011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601410 (or 1601407 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 28746142011 in words is "twenty-eight billion, seven hundred forty-six million, one hundred forty-two thousand, eleven".

Divisors: 1 3 9 1997 5991 17973 1599407 4798221 14394663 3194015779 9582047337 28746142011