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80484751 = 233499337
BaseRepresentation
bin1001100110000…
…01100110001111
312121110001022201
410303001212033
5131101003001
611553022331
71665052264
oct463014617
9177401281
1080484751
1141482426
1222b549a7
131389cc19
14a99126b
1570ec501
hex4cc198f

80484751 has 4 divisors (see below), whose sum is σ = 83984112. Its totient is φ = 76985392.

The previous prime is 80484739. The next prime is 80484757. The reversal of 80484751 is 15748408.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80484751 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 80484751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80484757) 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, 1749646 + ... + 1749691.

It is an arithmetic number, because the mean of its divisors is an integer number (20996028).

Almost surely, 280484751 is an apocalyptic number.

80484751 is a deficient number, since it is larger than the sum of its proper divisors (3499361).

80484751 is a wasteful number, since it uses less digits than its factorization.

80484751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499360.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 80484751 is about 8971.3293886692. The cubic root of 80484751 is about 431.7554897064.

The spelling of 80484751 in words is "eighty million, four hundred eighty-four thousand, seven hundred fifty-one".

Divisors: 1 23 3499337 80484751