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80743051 = 397203383
BaseRepresentation
bin1001101000000…
…00101010001011
312121221011122101
410310000222023
5131132234201
612002334231
72000206324
oct464005213
9177834571
1080743051
11416394a4
122305a377
131396066c
14aa1b44b
15714dd01
hex4d00a8b

80743051 has 4 divisors (see below), whose sum is σ = 80946832. Its totient is φ = 80539272.

The previous prime is 80743031. The next prime is 80743057. The reversal of 80743051 is 15034708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80743051 - 213 = 80734859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80743057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101295 + ... + 102088.

It is an arithmetic number, because the mean of its divisors is an integer number (20236708).

Almost surely, 280743051 is an apocalyptic number.

80743051 is a deficient number, since it is larger than the sum of its proper divisors (203781).

80743051 is a wasteful number, since it uses less digits than its factorization.

80743051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203780.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 80743051 is about 8985.7137167840. The cubic root of 80743051 is about 432.2168746302.

Adding to 80743051 its reverse (15034708), we get a palindrome (95777759).

The spelling of 80743051 in words is "eighty million, seven hundred forty-three thousand, fifty-one".

Divisors: 1 397 203383 80743051