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80474530 = 258047453
BaseRepresentation
bin1001100101111…
…11000110100010
312121102112022011
410302333012202
5131100141110
611552503134
71665010423
oct462770642
9177375264
1080474530
1141475784
1222b4aaaa
1313898386
14a98b64a
1570e948a
hex4cbf1a2

80474530 has 8 divisors (see below), whose sum is σ = 144854172. Its totient is φ = 32189808.

The previous prime is 80474509. The next prime is 80474573. The reversal of 80474530 is 3547408.

It can be written as a sum of positive squares in 2 ways, for example, as 78304801 + 2169729 = 8849^2 + 1473^2 .

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

It is a super-2 number, since 2×804745302 = 12952299957441800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80474492 and 80474501.

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, 4023717 + ... + 4023736.

Almost surely, 280474530 is an apocalyptic number.

80474530 is a deficient number, since it is larger than the sum of its proper divisors (64379642).

80474530 is a wasteful number, since it uses less digits than its factorization.

80474530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047460.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 80474530 is about 8970.7597225653. The cubic root of 80474530 is about 431.7372122910.

The spelling of 80474530 in words is "eighty million, four hundred seventy-four thousand, five hundred thirty".

Divisors: 1 2 5 10 8047453 16094906 40237265 80474530