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1042317620 = 22552115881
BaseRepresentation
bin111110001000001…
…000000100110100
32200122022012222022
4332020020010310
54113313130440
6251232252312
734554360611
oct7610100464
92618265868
101042317620
114953a7723
122510a1098
13137c358b6
149c605508
156178ecb5
hex3e208134

1042317620 has 12 divisors (see below), whose sum is σ = 2188867044. Its totient is φ = 416927040.

The previous prime is 1042317607. The next prime is 1042317631. The reversal of 1042317620 is 267132401.

It can be written as a sum of positive squares in 2 ways, for example, as 388799524 + 653518096 = 19718^2 + 25564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1042317620.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 26057921 + ... + 26057960.

It is an arithmetic number, because the mean of its divisors is an integer number (182405587).

Almost surely, 21042317620 is an apocalyptic number.

1042317620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042317620 is an abundant number, since it is smaller than the sum of its proper divisors (1146549424).

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

1042317620 is a wasteful number, since it uses less digits than its factorization.

1042317620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52115890 (or 52115888 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1042317620 is about 32284.9441690705. The cubic root of 1042317620 is about 1013.9114475407.

The spelling of 1042317620 in words is "one billion, forty-two million, three hundred seventeen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 52115881 104231762 208463524 260579405 521158810 1042317620