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76956069 = 325652023
BaseRepresentation
bin1001001011001…
…00000110100101
312100210202212210
410211210012211
5124200043234
611345234033
71623054501
oct445440645
9170722783
1076956069
113a492263
1221932919
1312c35a48
14a313301
156b51be9
hex49641a5

76956069 has 4 divisors (see below), whose sum is σ = 102608096. Its totient is φ = 51304044.

The previous prime is 76956037. The next prime is 76956073. The reversal of 76956069 is 96065967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96065967 = 332021989.

It is not a de Polignac number, because 76956069 - 25 = 76956037 is a prime.

It is a super-2 number, since 2×769560692 = 11844473111865522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76956079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12826009 + ... + 12826014.

It is an arithmetic number, because the mean of its divisors is an integer number (25652024).

Almost surely, 276956069 is an apocalyptic number.

It is an amenable number.

76956069 is a deficient number, since it is larger than the sum of its proper divisors (25652027).

76956069 is a wasteful number, since it uses less digits than its factorization.

76956069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25652026.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 76956069 is about 8772.4608292086. The cubic root of 76956069 is about 425.3511635138.

The spelling of 76956069 in words is "seventy-six million, nine hundred fifty-six thousand, sixty-nine".

Divisors: 1 3 25652023 76956069