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76161407 = 710880201
BaseRepresentation
bin1001000101000…
…10000101111111
312022022101210212
410202202011333
5123444131112
611320223035
71613234630
oct442420577
9168271725
1076161407
1139a9a213
122160aa7b
1312a1812a
14a187887
156a46522
hex48a217f

76161407 has 4 divisors (see below), whose sum is σ = 87041616. Its totient is φ = 65281200.

The previous prime is 76161403. The next prime is 76161431. The reversal of 76161407 is 70416167.

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: 70416167 = 71991777.

It is a cyclic number.

It is not a de Polignac number, because 76161407 - 22 = 76161403 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 (76161403) 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, 5440094 + ... + 5440107.

It is an arithmetic number, because the mean of its divisors is an integer number (21760404).

Almost surely, 276161407 is an apocalyptic number.

76161407 is a deficient number, since it is larger than the sum of its proper divisors (10880209).

76161407 is a wasteful number, since it uses less digits than its factorization.

76161407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880208.

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

The square root of 76161407 is about 8727.0503035103. The cubic root of 76161407 is about 423.8820111206.

The spelling of 76161407 in words is "seventy-six million, one hundred sixty-one thousand, four hundred seven".

Divisors: 1 7 10880201 76161407