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131003212400 = 24521991645769
BaseRepresentation
bin111101000000001100…
…1100110001001110000
3110112010211122201022122
41322000121212021300
54121243310244100
6140103153253412
712315244634564
oct1720031461160
9415124581278
10131003212400
1150615997495
1221480864268
13c479997c38
1464aa8116a4
15361ae7b985
hex1e80666270

131003212400 has 60 divisors (see below), whose sum is σ = 316316994000. Its totient is φ = 52137930240.

The previous prime is 131003212397. The next prime is 131003212411. The reversal of 131003212400 is 4212300131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 743285 + ... + 902484.

It is an arithmetic number, because the mean of its divisors is an integer number (5271949900).

Almost surely, 2131003212400 is an apocalyptic number.

131003212400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131003212400 is an abundant number, since it is smaller than the sum of its proper divisors (185313781600).

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

131003212400 is a wasteful number, since it uses less digits than its factorization.

131003212400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645986 (or 1645975 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 131003212400 its reverse (4212300131), we get a palindrome (135215512531).

The spelling of 131003212400 in words is "one hundred thirty-one billion, three million, two hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 199 200 398 400 796 995 1592 1990 3184 3980 4975 7960 9950 15920 19900 39800 79600 1645769 3291538 6583076 8228845 13166152 16457690 26332304 32915380 41144225 65830760 82288450 131661520 164576900 327508031 329153800 655016062 658307600 1310032124 1637540155 2620064248 3275080310 5240128496 6550160620 8187700775 13100321240 16375401550 26200642480 32750803100 65501606200 131003212400