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1453320081 = 32161480009
BaseRepresentation
bin101011010011111…
…1110011110010001
310202021200022100200
41112213332132101
510434022220311
6400113405413
751005005533
oct12647763621
93667608320
101453320081
116863a7984
12346869869
131a212a115
14db031853
15878c8556
hex569fe791

1453320081 has 6 divisors (see below), whose sum is σ = 2099240130. Its totient is φ = 968880048.

The previous prime is 1453320079. The next prime is 1453320097. The reversal of 1453320081 is 1800233541.

It is a happy number.

1453320081 is a `hidden beast` number, since 1 + 453 + 3 + 200 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1399957056 + 53363025 = 37416^2 + 7305^2 .

It is not a de Polignac number, because 1453320081 - 21 = 1453320079 is a prime.

It is a super-2 number, since 2×14533200812 = 4224278515675693122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1453320031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80739996 + ... + 80740013.

It is an arithmetic number, because the mean of its divisors is an integer number (349873355).

Almost surely, 21453320081 is an apocalyptic number.

It is an amenable number.

1453320081 is a deficient number, since it is larger than the sum of its proper divisors (645920049).

1453320081 is a wasteful number, since it uses less digits than its factorization.

1453320081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161480015 (or 161480012 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1453320081 is about 38122.4354022667. The cubic root of 1453320081 is about 1132.7144081865.

The spelling of 1453320081 in words is "one billion, four hundred fifty-three million, three hundred twenty thousand, eighty-one".

Divisors: 1 3 9 161480009 484440027 1453320081