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80804746 = 21119918457
BaseRepresentation
bin1001101000011…
…11101110001010
312122001022021101
410310033232022
5131141222441
612003532014
72000554231
oct464175612
9178038241
1080804746
1141680890
122308a00a
1313982779
14aa35b18
157162231
hex4d0fb8a

80804746 has 16 divisors (see below), whose sum is σ = 132897600. Its totient is φ = 36542880.

The previous prime is 80804743. The next prime is 80804749. The reversal of 80804746 is 64740808.

It is an interprime number because it is at equal distance from previous prime (80804743) and next prime (80804749).

It is a super-2 number, since 2×808047462 = 13058813952249032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80804743) 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, 4851 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (8306100).

Almost surely, 280804746 is an apocalyptic number.

80804746 is a deficient number, since it is larger than the sum of its proper divisors (52092854).

80804746 is a wasteful number, since it uses less digits than its factorization.

80804746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18669.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 80804746 is about 8989.1460106063. The cubic root of 80804746 is about 432.3269308764.

The spelling of 80804746 in words is "eighty million, eight hundred four thousand, seven hundred forty-six".

Divisors: 1 2 11 22 199 398 2189 4378 18457 36914 203027 406054 3672943 7345886 40402373 80804746