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2857457143140 = 2235235720205467
BaseRepresentation
bin101001100101001101101…
…101111100110101100100
3101010011121002201212212020
4221211031231330311210
5333304033012040030
610024410411223140
7413305310651655
oct51451555746544
911104532655766
102857457143140
11a01928077646
123a1964747ab0
131795c31b47a2
149c431a9d52c
154e4e067d510
hex2994db7cd64

2857457143140 has 48 divisors (see below), whose sum is σ = 8004274915392. Its totient is φ = 761665246336.

The previous prime is 2857457143067. The next prime is 2857457143153. The reversal of 2857457143140 is 413417547582.

It is a super-2 number, since 2×28574571431402 (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9961314 + ... + 10244153.

It is an arithmetic number, because the mean of its divisors is an integer number (166755727404).

Almost surely, 22857457143140 is an apocalyptic number.

2857457143140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2857457143140 is an abundant number, since it is smaller than the sum of its proper divisors (5146817772252).

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

2857457143140 is a wasteful number, since it uses less digits than its factorization.

2857457143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20207836 (or 20207834 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 2857457143140 in words is "two trillion, eight hundred fifty-seven billion, four hundred fifty-seven million, one hundred forty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2357 4714 7071 9428 11785 14142 23570 28284 35355 47140 70710 141420 20205467 40410934 60616401 80821868 101027335 121232802 202054670 242465604 303082005 404109340 606164010 1212328020 47624285719 95248571438 142872857157 190497142876 238121428595 285745714314 476242857190 571491428628 714364285785 952485714380 1428728571570 2857457143140