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76764101 = 257298693
BaseRepresentation
bin1001001001101…
…01001111000101
312100110000112212
410210311033011
5124122422401
611341153205
71621325021
oct444651705
9170400485
1076764101
113a371007
122185b805
1312b9955b
14a2a3381
156b14dbb
hex49353c5

76764101 has 4 divisors (see below), whose sum is σ = 77063052. Its totient is φ = 76465152.

The previous prime is 76764089. The next prime is 76764109. The reversal of 76764101 is 10146767.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10146767 = 82312329.

It can be written as a sum of positive squares in 2 ways, for example, as 74407876 + 2356225 = 8626^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 76764101 - 226 = 9655237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76764109) 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 3 ways as a sum of consecutive naturals, for example, 149090 + ... + 149603.

It is an arithmetic number, because the mean of its divisors is an integer number (19265763).

Almost surely, 276764101 is an apocalyptic number.

It is an amenable number.

76764101 is a deficient number, since it is larger than the sum of its proper divisors (298951).

76764101 is a wasteful number, since it uses less digits than its factorization.

76764101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298950.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 76764101 is about 8761.5124835841. The cubic root of 76764101 is about 424.9971875246.

The spelling of 76764101 in words is "seventy-six million, seven hundred sixty-four thousand, one hundred one".

Divisors: 1 257 298693 76764101