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76242620407 = 181421229947
BaseRepresentation
bin100011100000001101…
…0100000111111110111
321021210110221102011211
41013000122200333313
52222121102323112
655005251542251
75336235403102
oct1070032407767
9237713842154
1076242620407
112a374a76198
12129395ba987
137260870b95
143993b3d739
151eb36c10a7
hex11c06a0ff7

76242620407 has 4 divisors (see below), whose sum is σ = 76663850536. Its totient is φ = 75821390280.

The previous prime is 76242620359. The next prime is 76242620449. The reversal of 76242620407 is 70402624267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70402624267 = 258892719403.

It is a cyclic number.

It is not a de Polignac number, because 76242620407 - 235 = 41882882039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76242620407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76242620107) 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 3 ways as a sum of consecutive naturals, for example, 210614793 + ... + 210615154.

It is an arithmetic number, because the mean of its divisors is an integer number (19165962634).

Almost surely, 276242620407 is an apocalyptic number.

76242620407 is a deficient number, since it is larger than the sum of its proper divisors (421230129).

76242620407 is a wasteful number, since it uses less digits than its factorization.

76242620407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421230128.

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 76242620407 in words is "seventy-six billion, two hundred forty-two million, six hundred twenty thousand, four hundred seven".

Divisors: 1 181 421229947 76242620407