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1420124660 = 225157452269
BaseRepresentation
bin101010010100101…
…0110000111110100
310122222012210210122
41110221112013310
510402022442120
6352530111112
750122601063
oct12451260764
93588183718
101420124660
11669694749
1233771b498
131982a6866
14d68701da
1584a1ca25
hex54a561f4

1420124660 has 24 divisors (see below), whose sum is σ = 3001263720. Its totient is φ = 564430464.

The previous prime is 1420124659. The next prime is 1420124681. The reversal of 1420124660 is 664210241.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 1420083856 = 202^2 + 37684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222995 + ... + 229274.

It is an arithmetic number, because the mean of its divisors is an integer number (125052655).

Almost surely, 21420124660 is an apocalyptic number.

1420124660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420124660 is an abundant number, since it is smaller than the sum of its proper divisors (1581139060).

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

1420124660 is a wasteful number, since it uses less digits than its factorization.

1420124660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452435 (or 452433 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1420124660 is about 37684.5413929903. The cubic root of 1420124660 is about 1124.0237548962.

The spelling of 1420124660 in words is "one billion, four hundred twenty million, one hundred twenty-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 452269 904538 1809076 2261345 4522690 9045380 71006233 142012466 284024932 355031165 710062330 1420124660