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80452144 = 245028259
BaseRepresentation
bin1001100101110…
…01101000110000
312121101101121001
410302321220300
5131043432034
611552211344
71664555233
oct462715060
9177341531
1080452144
114145a983
1222b39b54
131388b126
14a98341a
1570e2a14
hex4cb9a30

80452144 has 10 divisors (see below), whose sum is σ = 155876060. Its totient is φ = 40226064.

The previous prime is 80452139. The next prime is 80452153. The reversal of 80452144 is 44125408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2514114 + ... + 2514145.

It is an arithmetic number, because the mean of its divisors is an integer number (15587606).

Almost surely, 280452144 is an apocalyptic number.

It is an amenable number.

80452144 is a deficient number, since it is larger than the sum of its proper divisors (75423916).

80452144 is a wasteful number, since it uses less digits than its factorization.

80452144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028267 (or 5028261 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 80452144 is about 8969.5119153720. The cubic root of 80452144 is about 431.6971757496.

The spelling of 80452144 in words is "eighty million, four hundred fifty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 5028259 10056518 20113036 40226072 80452144