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80386434 = 23229153997
BaseRepresentation
bin1001100101010…
…01100110000010
312121021001110100
410302221212002
5131034331214
611550543230
71664162532
oct462514602
9177231410
1080386434
1141415577
1222b07b16
131386724b
14a9674c2
1570cd309
hex4ca9982

80386434 has 24 divisors (see below), whose sum is σ = 180177660. Its totient is φ = 25871328.

The previous prime is 80386417. The next prime is 80386451. The reversal of 80386434 is 43468308.

80386434 is a `hidden beast` number, since 8 + 0 + 3 + 8 + 643 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (80386417) and next prime (80386451).

It can be written as a sum of positive squares in 2 ways, for example, as 78269409 + 2117025 = 8847^2 + 1455^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76477 + ... + 77520.

Almost surely, 280386434 is an apocalyptic number.

80386434 is an abundant number, since it is smaller than the sum of its proper divisors (99791226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80386434 is a wasteful number, since it uses less digits than its factorization.

80386434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154034 (or 154031 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 80386434 is about 8965.8482030425. The cubic root of 80386434 is about 431.5796129085.

The spelling of 80386434 in words is "eighty million, three hundred eighty-six thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 153997 307994 461991 923982 1385973 2771946 4465913 8931826 13397739 26795478 40193217 80386434