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131012020200 = 23352317043657
BaseRepresentation
bin111101000000011101…
…1001100011111101000
3110112011110020012100110
41322000323030133220
54121303034121300
6140104110134320
712315412540365
oct1720073143750
9415143205313
10131012020200
115061a962966
12214837b13a0
13c47b75cc59
1464aba6546c
15361bb1b550
hex1e80ecc7e8

131012020200 has 96 divisors (see below), whose sum is σ = 419238524160. Its totient is φ = 33809548800.

The previous prime is 131012020199. The next prime is 131012020213. The reversal of 131012020200 is 2020210131.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 23 ways as a sum of consecutive naturals, for example, 3503229 + ... + 3540428.

It is an arithmetic number, because the mean of its divisors is an integer number (4367067960).

Almost surely, 2131012020200 is an apocalyptic number.

131012020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012020200 is an abundant number, since it is smaller than the sum of its proper divisors (288226503960).

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

131012020200 is a wasteful number, since it uses less digits than its factorization.

131012020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043707 (or 7043698 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 131012020200 its reverse (2020210131), we get a palindrome (133032230331).

The spelling of 131012020200 in words is "one hundred thirty-one billion, twelve million, twenty thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 31 40 50 60 62 75 93 100 120 124 150 155 186 200 248 300 310 372 465 600 620 744 775 930 1240 1550 1860 2325 3100 3720 4650 6200 9300 18600 7043657 14087314 21130971 28174628 35218285 42261942 56349256 70436570 84523884 105654855 140873140 169047768 176091425 211309710 218353367 281746280 352182850 422619420 436706734 528274275 655060101 704365700 845238840 873413468 1056548550 1091766835 1310120202 1408731400 1746826936 2113097100 2183533670 2620240404 3275300505 4226194200 4367067340 5240480808 5458834175 6550601010 8734134680 10917668350 13101202020 16376502525 21835336700 26202404040 32753005050 43670673400 65506010100 131012020200