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1431213201 = 321147930181
BaseRepresentation
bin101010101001110…
…1001010010010001
310200202002011102100
41111103221102101
510412342310301
6354003511013
750316053145
oct12523512221
93622064370
101431213201
11674978730
1233b388469
1319a689a22
14d8119225
15859ad286
hex554e9491

1431213201 has 24 divisors (see below), whose sum is σ = 2260028160. Its totient is φ = 865562400.

The previous prime is 1431213193. The next prime is 1431213263. The reversal of 1431213201 is 1023121341.

1431213201 is a `hidden beast` number, since 1 + 431 + 213 + 20 + 1 = 666.

It is not a de Polignac number, because 1431213201 - 23 = 1431213193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1431213001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32331 + ... + 62511.

It is an arithmetic number, because the mean of its divisors is an integer number (94167840).

Almost surely, 21431213201 is an apocalyptic number.

1431213201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1431213201 is a deficient number, since it is larger than the sum of its proper divisors (828814959).

1431213201 is a wasteful number, since it uses less digits than its factorization.

1431213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30677 (or 30674 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1431213201 is about 37831.3785236541. The cubic root of 1431213201 is about 1126.9416874201.

Adding to 1431213201 its reverse (1023121341), we get a palindrome (2454334542).

The spelling of 1431213201 in words is "one billion, four hundred thirty-one million, two hundred thirteen thousand, two hundred one".

Divisors: 1 3 9 11 33 99 479 1437 4311 5269 15807 30181 47421 90543 271629 331991 995973 2987919 14456699 43370097 130110291 159023689 477071067 1431213201