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80749282 = 2291392229
BaseRepresentation
bin1001101000000…
…10001011100010
312121221111012011
410310002023202
5131132434112
612002423134
72000233435
oct464021342
9177844164
1080749282
1141643149
1223061aaa
1313963453
14aa1d81c
157150aa7
hex4d022e2

80749282 has 8 divisors (see below), whose sum is σ = 125300700. Its totient is φ = 38982384.

The previous prime is 80749241. The next prime is 80749301. The reversal of 80749282 is 28294708.

It can be written as a sum of positive squares in 2 ways, for example, as 75325041 + 5424241 = 8679^2 + 2329^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696057 + ... + 696172.

Almost surely, 280749282 is an apocalyptic number.

80749282 is a deficient number, since it is larger than the sum of its proper divisors (44551418).

80749282 is a wasteful number, since it uses less digits than its factorization.

80749282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392260.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 80749282 is about 8986.0604271282. The cubic root of 80749282 is about 432.2279925078.

The spelling of 80749282 in words is "eighty million, seven hundred forty-nine thousand, two hundred eighty-two".

Divisors: 1 2 29 58 1392229 2784458 40374641 80749282