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1431260380 = 225117982351
BaseRepresentation
bin101010101001111…
…0100110011011100
310200202011120010201
41111103310303130
510412400313010
6354004513244
750316340534
oct12523646334
93622146121
101431260380
11674a00120
1233b3ab824
1319a6a5344
14d812c4c4
15859bc23a
hex554f4cdc

1431260380 has 48 divisors (see below), whose sum is σ = 3320432640. Its totient is φ = 513864000.

The previous prime is 1431260333. The next prime is 1431260393. The reversal of 1431260380 is 830621341.

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 15 ways as a sum of consecutive naturals, for example, 23796 + ... + 58555.

It is an arithmetic number, because the mean of its divisors is an integer number (69175680).

Almost surely, 21431260380 is an apocalyptic number.

1431260380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431260380 is an abundant number, since it is smaller than the sum of its proper divisors (1889172260).

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

1431260380 is a wasteful number, since it uses less digits than its factorization.

1431260380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82450 (or 82448 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1431260380 is about 37832.0020617466. The cubic root of 1431260380 is about 1126.9540702474.

The spelling of 1431260380 in words is "one billion, four hundred thirty-one million, two hundred sixty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 79 110 158 220 316 395 790 869 1580 1738 3476 4345 8690 17380 82351 164702 329404 411755 823510 905861 1647020 1811722 3623444 4529305 6505729 9058610 13011458 18117220 26022916 32528645 65057290 71563019 130114580 143126038 286252076 357815095 715630190 1431260380