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1023425143 = 131737257487
BaseRepresentation
bin111101000000000…
…011101001110111
32122022202101100221
4331000003221313
54043444101033
6245315315211
734234653526
oct7500035167
92568671327
101023425143
11485773504
122468abb07
1313404c610
1499cc84bd
155ecac12d
hex3d003a77

1023425143 has 32 divisors (see below), whose sum is σ = 1205656704. Its totient is φ = 859963392.

The previous prime is 1023425129. The next prime is 1023425191. The reversal of 1023425143 is 3415243201.

1023425143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a 17-Lehmer number, since φ(1023425143) divides (1023425143-1)17.

It is a cyclic number.

It is not a de Polignac number, because 1023425143 - 25 = 1023425111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023425113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2101246 + ... + 2101732.

It is an arithmetic number, because the mean of its divisors is an integer number (37676772).

Almost surely, 21023425143 is an apocalyptic number.

1023425143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1023425143 is a deficient number, since it is larger than the sum of its proper divisors (182231561).

1023425143 is a wasteful number, since it uses less digits than its factorization.

1023425143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1023425143 is about 31991.0165984140. The cubic root of 1023425143 is about 1007.7481914760.

Adding to 1023425143 its reverse (3415243201), we get a palindrome (4438668344).

The spelling of 1023425143 in words is "one billion, twenty-three million, four hundred twenty-five thousand, one hundred forty-three".

Divisors: 1 13 17 37 221 257 481 487 629 3341 4369 6331 8177 8279 9509 18019 56797 107627 123617 125159 161653 234247 306323 1627067 2101489 2127703 3982199 4630883 27660139 60201479 78725011 1023425143