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80452089 = 3328310529
BaseRepresentation
bin1001100101110…
…01100111111001
312121101101112000
410302321213321
5131043431324
611552211213
71664555124
oct462714771
9177341460
1080452089
114145a933
1222b39b09
131388b0b3
14a9833bb
1570e29c9
hex4cb99f9

80452089 has 16 divisors (see below), whose sum is σ = 119620800. Its totient is φ = 53440128.

The previous prime is 80452081. The next prime is 80452117. The reversal of 80452089 is 98025408.

It is not a de Polignac number, because 80452089 - 23 = 80452081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80452081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377 + ... + 12905.

It is an arithmetic number, because the mean of its divisors is an integer number (7476300).

Almost surely, 280452089 is an apocalyptic number.

It is an amenable number.

80452089 is a deficient number, since it is larger than the sum of its proper divisors (39168711).

80452089 is a wasteful number, since it uses less digits than its factorization.

80452089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10821 (or 10815 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 80452089 is about 8969.5088494298. The cubic root of 80452089 is about 431.6970773750.

It can be divided in two parts, 804520 and 89, that added together give a square (804609 = 8972).

The spelling of 80452089 in words is "eighty million, four hundred fifty-two thousand, eighty-nine".

Divisors: 1 3 9 27 283 849 2547 7641 10529 31587 94761 284283 2979707 8939121 26817363 80452089