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131012222042 = 213374714919447
BaseRepresentation
bin111101000000011101…
…1111101110001011010
3110112011110121110020002
41322000323331301122
54121303112101132
6140104114333002
712315414341012
oct1720073756132
9415143543202
10131012222042
115061aa90579
122148388a162
13c47b800aa0
1464abab8c42
15361bb5b262
hex1e80efdc5a

131012222042 has 64 divisors (see below), whose sum is σ = 223480857600. Its totient is φ = 57191774976.

The previous prime is 131012222021. The next prime is 131012222051. The reversal of 131012222042 is 240222210131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6727163 + ... + 6746609.

It is an arithmetic number, because the mean of its divisors is an integer number (3491888400).

Almost surely, 2131012222042 is an apocalyptic number.

131012222042 is a deficient number, since it is larger than the sum of its proper divisors (92468635558).

131012222042 is a wasteful number, since it uses less digits than its factorization.

131012222042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19695.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 131012222042 its reverse (240222210131), we get a palindrome (371234432173).

The spelling of 131012222042 in words is "one hundred thirty-one billion, twelve million, two hundred twenty-two thousand, forty-two".

Divisors: 1 2 13 26 37 47 74 94 149 298 481 611 962 1222 1739 1937 3478 3874 5513 7003 11026 14006 19447 22607 38894 45214 71669 91039 143338 182078 252811 259111 505622 518222 719539 914009 1439078 1828018 2897603 3368443 5795206 6736886 9354007 11882117 18708014 23764234 33818333 37668839 67636666 75337678 107211311 136187341 214422622 272374682 439638329 879276658 1393747043 1770435433 2787494086 3540870866 5038931617 10077863234 65506111021 131012222042