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1420580409 = 31913247531
BaseRepresentation
bin101010010101100…
…0101011000111001
310200000001221222020
41110223011120321
510402132033114
6352543545053
750126506563
oct12453053071
93600057866
101420580409
116699760a6
123378bb189
13198406131
14d694c333
1584aacaa9
hex54ac5639

1420580409 has 8 divisors (see below), whose sum is σ = 1895104992. Its totient is φ = 946554720.

The previous prime is 1420580407. The next prime is 1420580411. The reversal of 1420580409 is 9040850241.

It is an interprime number because it is at equal distance from previous prime (1420580407) and next prime (1420580411).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1420580409 - 21 = 1420580407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420580409.

It is not an unprimeable number, because it can be changed into a prime (1420580407) 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, 118027 + ... + 129504.

It is an arithmetic number, because the mean of its divisors is an integer number (236888124).

Almost surely, 21420580409 is an apocalyptic number.

It is an amenable number.

1420580409 is a deficient number, since it is larger than the sum of its proper divisors (474524583).

1420580409 is a wasteful number, since it uses less digits than its factorization.

1420580409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249447.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1420580409 is about 37690.5878038536. The cubic root of 1420580409 is about 1124.1439832880.

The spelling of 1420580409 in words is "one billion, four hundred twenty million, five hundred eighty thousand, four hundred nine".

Divisors: 1 3 1913 5739 247531 742593 473526803 1420580409