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1420505474 = 21937381723
BaseRepresentation
bin101010010101011…
…0011000110000010
310122222221011011212
41110222303012002
510402122133344
6352542210122
750126045243
oct12452630602
93588834155
101420505474
11669924873
12337883942
131983aacab
14d692ccca
1584a9579e
hex54ab3182

1420505474 has 8 divisors (see below), whose sum is σ = 2242903440. Its totient is φ = 672870996.

The previous prime is 1420505459. The next prime is 1420505479. The reversal of 1420505474 is 4745050241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1420505474.

It is not an unprimeable number, because it can be changed into a prime (1420505479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18690824 + ... + 18690899.

It is an arithmetic number, because the mean of its divisors is an integer number (280362930).

Almost surely, 21420505474 is an apocalyptic number.

1420505474 is a deficient number, since it is larger than the sum of its proper divisors (822397966).

1420505474 is a wasteful number, since it uses less digits than its factorization.

1420505474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37381744.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 1420505474 is about 37689.5937096700. The cubic root of 1420505474 is about 1124.1242169047.

The spelling of 1420505474 in words is "one billion, four hundred twenty million, five hundred five thousand, four hundred seventy-four".

Divisors: 1 2 19 38 37381723 74763446 710252737 1420505474