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31232032020200 = 23521114196378191
BaseRepresentation
bin1110001100111110001100…
…01011001001011011101000
311002120202100000022002112002
413012133012023021123220
513043201200144121300
6150231444125110132
76402303603644234
oct706370613113350
9132522300262462
1031232032020200
119a51480949010
123604b883b8348
131457225097a5b
1479d8d1b515c4
1539263bbc85d5
hex1c67c62c96e8

31232032020200 has 48 divisors (see below), whose sum is σ = 79215790311360. Its totient is φ = 11357102552000.

The previous prime is 31232032020179. The next prime is 31232032020229. The reversal of 31232032020200 is 202023023213.

It is a super-2 number, since 2×312320320202002 (a number of 28 digits) contains 22 as substring.

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

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 11 ways as a sum of consecutive naturals, for example, 7098186896 + ... + 7098191295.

It is an arithmetic number, because the mean of its divisors is an integer number (1650328964820).

Almost surely, 231232032020200 is an apocalyptic number.

It is an amenable number.

31232032020200 is an abundant number, since it is smaller than the sum of its proper divisors (47983758291160).

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

31232032020200 is a wasteful number, since it uses less digits than its factorization.

31232032020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14196378218 (or 14196378209 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31232032020200 its reverse (202023023213), we get a palindrome (31434055043413).

The spelling of 31232032020200 in words is "thirty-one trillion, two hundred thirty-two billion, thirty-two million, twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 14196378191 28392756382 56785512764 70981890955 113571025528 141963781910 156160160101 283927563820 312320320202 354909454775 567855127640 624640640404 709818909550 780800800505 1249281280808 1419637819100 1561601601010 2839275638200 3123203202020 3904004002525 6246406404040 7808008005050 15616016010100 31232032020200