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80122641 = 354149367
BaseRepresentation
bin1001100011010…
…01001100010001
312120202122121020
410301221030101
5131002411031
611541150053
71662013464
oct461511421
9176678536
1080122641
1141255365
12229bb329
13137a4161
14a8d92db
15707a096
hex4c69311

80122641 has 8 divisors (see below), whose sum is σ = 107029824. Its totient is φ = 53315280.

The previous prime is 80122633. The next prime is 80122657. The reversal of 80122641 is 14622108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80122641 - 23 = 80122633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80122841) 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 7 ways as a sum of consecutive naturals, for example, 23061 + ... + 26306.

It is an arithmetic number, because the mean of its divisors is an integer number (13378728).

Almost surely, 280122641 is an apocalyptic number.

It is an amenable number.

80122641 is a deficient number, since it is larger than the sum of its proper divisors (26907183).

80122641 is a wasteful number, since it uses less digits than its factorization.

80122641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49911.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 80122641 is about 8951.1251248097. The cubic root of 80122641 is about 431.1070106073.

Adding to 80122641 its reverse (14622108), we get a palindrome (94744749).

The spelling of 80122641 in words is "eighty million, one hundred twenty-two thousand, six hundred forty-one".

Divisors: 1 3 541 1623 49367 148101 26707547 80122641