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80481078 = 2324471171
BaseRepresentation
bin1001100110000…
…00101100110110
312121102212021200
410303000230312
5131100343303
611552553330
71665035466
oct463005466
9177385250
1080481078
114147a697
1222b52846
131389b352
14a98dba6
1570eb3a3
hex4cc0b36

80481078 has 12 divisors (see below), whose sum is σ = 174375708. Its totient is φ = 26827020.

The previous prime is 80480999. The next prime is 80481103. The reversal of 80481078 is 87018408.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2235568 + ... + 2235603.

It is an arithmetic number, because the mean of its divisors is an integer number (14531309).

Almost surely, 280481078 is an apocalyptic number.

80481078 is an abundant number, since it is smaller than the sum of its proper divisors (93894630).

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

80481078 is a wasteful number, since it uses less digits than its factorization.

80481078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471179 (or 4471176 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 80481078 is about 8971.1246786565. The cubic root of 80481078 is about 431.7489217457.

The spelling of 80481078 in words is "eighty million, four hundred eighty-one thousand, seventy-eight".

Divisors: 1 2 3 6 9 18 4471171 8942342 13413513 26827026 40240539 80481078