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80408016 = 24321342953
BaseRepresentation
bin1001100101011…
…10110111010000
312121022011001200
410302232313100
5131041024031
611551231200
71664312463
oct462566720
9177264050
1080408016
114142a807
1222b18500
1313874010
14a9712da
1570d48e6
hex4caedd0

80408016 has 60 divisors (see below), whose sum is σ = 242346468. Its totient is φ = 24740352.

The previous prime is 80407969. The next prime is 80408033. The reversal of 80408016 is 61080408.

It can be written as a sum of positive squares in 2 ways, for example, as 7817616 + 72590400 = 2796^2 + 8520^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19605 + ... + 23348.

Almost surely, 280408016 is an apocalyptic number.

It is an amenable number.

80408016 is an abundant number, since it is smaller than the sum of its proper divisors (161938452).

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

80408016 is a wasteful number, since it uses less digits than its factorization.

80408016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42980 (or 42971 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 80408016 is about 8967.0516893793. The cubic root of 80408016 is about 431.6182326826.

The spelling of 80408016 in words is "eighty million, four hundred eight thousand, sixteen".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 42953 85906 128859 171812 257718 343624 386577 515436 558389 687248 773154 1030872 1116778 1546308 1675167 2061744 2233556 3092616 3350334 4467112 5025501 6185232 6700668 8934224 10051002 13401336 20102004 26802672 40204008 80408016