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203212032223120 = 2457510933819521
BaseRepresentation
bin101110001101000111111100…
…111111101010011110010000
3222122111212202220221021200021
4232031013330333222132100
5203113411220222114440
62000110152511233224
760542404411610404
oct5615077477523620
9878455686837607
10203212032223120
1159827814510578
121a95ba2a518814
138950a73b455ab
14382772ca07104
15187602824084a
hexb8d1fcfea790

203212032223120 has 40 divisors (see below), whose sum is σ = 472474279320120. Its totient is φ = 81283728261120.

The previous prime is 203212032223111. The next prime is 203212032223147. The reversal of 203212032223120 is 21322230212302.

It can be written as a sum of positive squares in 4 ways, for example, as 98125586858896 + 105086445364224 = 9905836^2 + 10251168^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2032120322231202 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10901041 + ... + 22918480.

It is an arithmetic number, because the mean of its divisors is an integer number (11811856983003).

Almost surely, 2203212032223120 is an apocalyptic number.

203212032223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203212032223120 is an abundant number, since it is smaller than the sum of its proper divisors (269262247097000).

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

203212032223120 is a wasteful number, since it uses less digits than its factorization.

203212032223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33894643 (or 33894637 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203212032223120 its reverse (21322230212302), we get a palindrome (224534262435422).

The spelling of 203212032223120 in words is "two hundred three trillion, two hundred twelve billion, thirty-two million, two hundred twenty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 75109 150218 300436 375545 600872 751090 1201744 1502180 3004360 6008720 33819521 67639042 135278084 169097605 270556168 338195210 541112336 676390420 1352780840 2705561680 2540150402789 5080300805578 10160601611156 12700752013945 20321203222312 25401504027890 40642406444624 50803008055780 101606016111560 203212032223120