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76020220 = 2253801011
BaseRepresentation
bin1001000011111…
…11100111111100
312022001020010201
410201333213330
5123430121340
611313213244
71612106203
oct441774774
9168036121
1076020220
1139a03131
1221561224
1312998aa3
14a14c23a
156a1979a
hex487f9fc

76020220 has 12 divisors (see below), whose sum is σ = 159642504. Its totient is φ = 30408080.

The previous prime is 76020193. The next prime is 76020233. The reversal of 76020220 is 2202067.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900486 + ... + 1900525.

It is an arithmetic number, because the mean of its divisors is an integer number (13303542).

Almost surely, 276020220 is an apocalyptic number.

It is an amenable number.

76020220 is an abundant number, since it is smaller than the sum of its proper divisors (83622284).

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

76020220 is a wasteful number, since it uses less digits than its factorization.

76020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801020 (or 3801018 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 76020220 is about 8718.9575064912. The cubic root of 76020220 is about 423.6199201616.

Adding to 76020220 its reverse (2202067), we get a palindrome (78222287).

The spelling of 76020220 in words is "seventy-six million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 3801011 7602022 15204044 19005055 38010110 76020220