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1431014420 = 225116504611
BaseRepresentation
bin101010101001011…
…1000110000010100
310200201201001202002
41111102320300110
510412314430140
6353555334432
750314264463
oct12522706024
93621631662
101431014420
11674852350
1233b2b1418
1319a61a3c4
14d80a69da
158596e415
hex554b8c14

1431014420 has 24 divisors (see below), whose sum is σ = 3278324448. Its totient is φ = 520368800.

The previous prime is 1431014411. The next prime is 1431014447. The reversal of 1431014420 is 244101341.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1431014392 and 1431014401.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3252086 + ... + 3252525.

It is an arithmetic number, because the mean of its divisors is an integer number (136596852).

Almost surely, 21431014420 is an apocalyptic number.

1431014420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431014420 is an abundant number, since it is smaller than the sum of its proper divisors (1847310028).

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

1431014420 is a wasteful number, since it uses less digits than its factorization.

1431014420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6504631 (or 6504629 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1431014420 is about 37828.7512350064. The cubic root of 1431014420 is about 1126.8895114137.

Adding to 1431014420 its reverse (244101341), we get a palindrome (1675115761).

The spelling of 1431014420 in words is "one billion, four hundred thirty-one million, fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 6504611 13009222 26018444 32523055 65046110 71550721 130092220 143101442 286202884 357753605 715507210 1431014420