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80421488 = 247718049
BaseRepresentation
bin1001100101100…
…10001001110000
312121022211112122
410302302021300
5131041441423
611551413412
71664366660
oct462621160
9177284478
1080421488
1141439944
1222b24268
131387a1a4
14a9761a0
1570d88c8
hex4cb2270

80421488 has 20 divisors (see below), whose sum is σ = 178076400. Its totient is φ = 34466304.

The previous prime is 80421479. The next prime is 80421499. The reversal of 80421488 is 88412408.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 358913 + ... + 359136.

It is an arithmetic number, because the mean of its divisors is an integer number (8903820).

Almost surely, 280421488 is an apocalyptic number.

It is an amenable number.

80421488 is an abundant number, since it is smaller than the sum of its proper divisors (97654912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80421488 is a wasteful number, since it uses less digits than its factorization.

80421488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718064 (or 718058 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 80421488 is about 8967.8028524271. The cubic root of 80421488 is about 431.6423365651.

The spelling of 80421488 in words is "eighty million, four hundred twenty-one thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 718049 1436098 2872196 5026343 5744392 10052686 11488784 20105372 40210744 80421488