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80487799 = 723894813
BaseRepresentation
bin1001100110000…
…10010101110111
312121110012111121
410303002111313
5131101102144
611553044411
71665064210
oct463022567
9177405447
1080487799
1141484747
1222b56707
13138a1422
14a992407
1570ed384
hex4cc2577

80487799 has 8 divisors (see below), whose sum is σ = 92043680. Its totient is φ = 68946336.

The previous prime is 80487779. The next prime is 80487817. The reversal of 80487799 is 99778408.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80487799 - 25 = 80487767 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 (80487709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14317 + ... + 19129.

It is an arithmetic number, because the mean of its divisors is an integer number (11505460).

Almost surely, 280487799 is an apocalyptic number.

80487799 is a deficient number, since it is larger than the sum of its proper divisors (11555881).

80487799 is a wasteful number, since it uses less digits than its factorization.

80487799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7209.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 80487799 is about 8971.4992615504. The cubic root of 80487799 is about 431.7609399070.

The spelling of 80487799 in words is "eighty million, four hundred eighty-seven thousand, seven hundred ninety-nine".

Divisors: 1 7 2389 4813 16723 33691 11498257 80487799