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80461457 = 2916011733
BaseRepresentation
bin1001100101110…
…11111010010001
312121101212100222
410302323322101
5131044231312
611552322425
71664624336
oct462737221
9177355328
1080461457
114146697a
1222b43415
131389243b
14a98698d
1570e5672
hex4cbbe91

80461457 has 8 divisors (see below), whose sum is σ = 83336040. Its totient is φ = 77593600.

The previous prime is 80461453. The next prime is 80461463. The reversal of 80461457 is 75416408.

It can be written as a sum of positive squares in 4 ways, for example, as 36954241 + 43507216 = 6079^2 + 6596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80461457 - 22 = 80461453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80461453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45563 + ... + 47295.

It is an arithmetic number, because the mean of its divisors is an integer number (10417005).

Almost surely, 280461457 is an apocalyptic number.

It is an amenable number.

80461457 is a deficient number, since it is larger than the sum of its proper divisors (2874583).

80461457 is a wasteful number, since it uses less digits than its factorization.

80461457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 80461457 is about 8970.0310478838. The cubic root of 80461457 is about 431.7138326112.

The spelling of 80461457 in words is "eighty million, four hundred sixty-one thousand, four hundred fifty-seven".

Divisors: 1 29 1601 1733 46429 50257 2774533 80461457