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80542948 = 2220135737
BaseRepresentation
bin1001100110011…
…11110011100100
312121120000011011
410303033303210
5131104333243
611554152004
71665414043
oct463176344
9177500134
1080542948
1141512122
1222b82604
13138c0565
14a9a855a
15710e89d
hex4ccfce4

80542948 has 6 divisors (see below), whose sum is σ = 140950166. Its totient is φ = 40271472.

The previous prime is 80542939. The next prime is 80543003. The reversal of 80542948 is 84924508.

It can be written as a sum of positive squares in only one way, i.e., 57426084 + 23116864 = 7578^2 + 4808^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80542948.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067865 + ... + 10067872.

Almost surely, 280542948 is an apocalyptic number.

It is an amenable number.

80542948 is a deficient number, since it is larger than the sum of its proper divisors (60407218).

80542948 is a wasteful number, since it uses less digits than its factorization.

80542948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20135741 (or 20135739 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 80542948 is about 8974.5723017869. The cubic root of 80542948 is about 431.8595293748.

The spelling of 80542948 in words is "eighty million, five hundred forty-two thousand, nine hundred forty-eight".

Divisors: 1 2 4 20135737 40271474 80542948