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76215201 = 325405067
BaseRepresentation
bin1001000101011…
…11001110100001
312022102010121020
410202233032201
5124002341301
611321320053
71613550516
oct442571641
9168363536
1076215201
113a026677
1221636029
1312a3676a
14a19d30d
156a57436
hex48af3a1

76215201 has 4 divisors (see below), whose sum is σ = 101620272. Its totient is φ = 50810132.

The previous prime is 76215193. The next prime is 76215211. The reversal of 76215201 is 10251267.

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.

It is a cyclic number.

It is not a de Polignac number, because 76215201 - 23 = 76215193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76215211) 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, 12702531 + ... + 12702536.

It is an arithmetic number, because the mean of its divisors is an integer number (25405068).

Almost surely, 276215201 is an apocalyptic number.

It is an amenable number.

76215201 is a deficient number, since it is larger than the sum of its proper divisors (25405071).

76215201 is a wasteful number, since it uses less digits than its factorization.

76215201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25405070.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 76215201 is about 8730.1317859469. The cubic root of 76215201 is about 423.9817858113.

Adding to 76215201 its reverse (10251267), we get a palindrome (86466468).

The spelling of 76215201 in words is "seventy-six million, two hundred fifteen thousand, two hundred one".

Divisors: 1 3 25405067 76215201