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76668201 = 36251419
BaseRepresentation
bin1001001000111…
…01110100101001
312100021011000000
410210131310221
5124111340301
611335133213
71620445311
oct444356451
9170234000
1076668201
113a305a55
1221814209
1312b649cc
14a27a441
156ae6786
hex491dd29

76668201 has 28 divisors (see below), whose sum is σ = 115683120. Its totient is φ = 50787000.

The previous prime is 76668169. The next prime is 76668209. The reversal of 76668201 is 10286667.

It is a happy number.

It is not a de Polignac number, because 76668201 - 25 = 76668169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76668209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 182770 + ... + 183188.

It is an arithmetic number, because the mean of its divisors is an integer number (4131540).

Almost surely, 276668201 is an apocalyptic number.

It is an amenable number.

76668201 is a deficient number, since it is larger than the sum of its proper divisors (39014919).

76668201 is an equidigital number, since it uses as much as digits as its factorization.

76668201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 76668201 is about 8756.0379738784. The cubic root of 76668201 is about 424.8201333463.

The spelling of 76668201 in words is "seventy-six million, six hundred sixty-eight thousand, two hundred one".

Divisors: 1 3 9 27 81 243 251 419 729 753 1257 2259 3771 6777 11313 20331 33939 60993 101817 105169 182979 305451 315507 946521 2839563 8518689 25556067 76668201