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80957803 = 197358369
BaseRepresentation
bin1001101001101…
…01000101101011
312122100002020011
410310311011223
5131211122203
612011112351
72002062403
oct464650553
9178302204
1080957803
1141775883
12231426b7
1313a07334
14aa75803
15719276d
hex4d3516b

80957803 has 8 divisors (see below), whose sum is σ = 86387600. Its totient is φ = 75644928.

The previous prime is 80957783. The next prime is 80957819. The reversal of 80957803 is 30875908.

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

It is not a de Polignac number, because 80957803 - 213 = 80949611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80957873) 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, 27798 + ... + 30571.

It is an arithmetic number, because the mean of its divisors is an integer number (10798450).

Almost surely, 280957803 is an apocalyptic number.

80957803 is a deficient number, since it is larger than the sum of its proper divisors (5429797).

80957803 is a wasteful number, since it uses less digits than its factorization.

80957803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58461.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 80957803 is about 8997.6554168294. The cubic root of 80957803 is about 432.5997239610.

The spelling of 80957803 in words is "eighty million, nine hundred fifty-seven thousand, eight hundred three".

Divisors: 1 19 73 1387 58369 1109011 4260937 80957803