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23144142020 = 2252634400027
BaseRepresentation
bin10101100011011111…
…111001010011000100
32012201221210020021012
4111203133321103010
5334344400021040
614344323141352
71446350650466
oct254337712304
965657706235
1023144142020
1198a72a04aa
12459ab14858
13224abb98bc
141197ad0136
15906cd3865
hex5637f94c4

23144142020 has 24 divisors (see below), whose sum is σ = 48787510464. Its totient is φ = 9222454496.

The previous prime is 23144142011. The next prime is 23144142031. The reversal of 23144142020 is 2024144132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194754 + ... + 2205273.

It is an arithmetic number, because the mean of its divisors is an integer number (2032812936).

Almost surely, 223144142020 is an apocalyptic number.

23144142020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23144142020 is an abundant number, since it is smaller than the sum of its proper divisors (25643368444).

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

23144142020 is a wasteful number, since it uses less digits than its factorization.

23144142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400299 (or 4400297 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 23144142020 its reverse (2024144132), we get a palindrome (25168286152).

The spelling of 23144142020 in words is "twenty-three billion, one hundred forty-four million, one hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 263 526 1052 1315 2630 5260 4400027 8800054 17600108 22000135 44000270 88000540 1157207101 2314414202 4628828404 5786035505 11572071010 23144142020