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76450001 = 431777907
BaseRepresentation
bin1001000111010…
…00100011010001
312022212001200112
410203220203101
5124032400001
611330331105
71615546205
oct443504321
9168761615
1076450001
113a177021
1221729a95
1312ab95b4
14a220b05
156aa1cbb
hex48e88d1

76450001 has 4 divisors (see below), whose sum is σ = 78227952. Its totient is φ = 74672052.

The previous prime is 76449991. The next prime is 76450007. The reversal of 76450001 is 10005467.

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: 10005467 = 31322757.

It is a cyclic number.

It is not a de Polignac number, because 76450001 - 222 = 72255697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76450007) 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, 888911 + ... + 888996.

It is an arithmetic number, because the mean of its divisors is an integer number (19556988).

Almost surely, 276450001 is an apocalyptic number.

It is an amenable number.

76450001 is a deficient number, since it is larger than the sum of its proper divisors (1777951).

76450001 is a wasteful number, since it uses less digits than its factorization.

76450001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777950.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 76450001 is about 8743.5691225037. The cubic root of 76450001 is about 424.4167334599.

Adding to 76450001 its reverse (10005467), we get a palindrome (86455468).

The spelling of 76450001 in words is "seventy-six million, four hundred fifty thousand, one".

Divisors: 1 43 1777907 76450001