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80290894 = 240145447
BaseRepresentation
bin1001100100100…
…10010001001110
312121002012101211
410302102101032
5131023302034
611544525034
71663314145
oct462222116
9177065354
1080290894
114135a812
1222a8077a
1313832908
14a94075c
1570aed64
hex4c9244e

80290894 has 4 divisors (see below), whose sum is σ = 120436344. Its totient is φ = 40145446.

The previous prime is 80290883. The next prime is 80290897. The reversal of 80290894 is 49809208.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80290897) by changing a digit.

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 as a sum of consecutive naturals, namely, 20072722 + ... + 20072725.

It is an arithmetic number, because the mean of its divisors is an integer number (30109086).

Almost surely, 280290894 is an apocalyptic number.

80290894 is a deficient number, since it is larger than the sum of its proper divisors (40145450).

80290894 is a wasteful number, since it uses less digits than its factorization.

80290894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40145449.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 80290894 is about 8960.5186233834. The cubic root of 80290894 is about 431.4085663763.

The spelling of 80290894 in words is "eighty million, two hundred ninety thousand, eight hundred ninety-four".

Divisors: 1 2 40145447 80290894