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187996707944 = 23192101644513
BaseRepresentation
bin1010111100010101111…
…0100001110001101000
3122222020210222021021222
42233011132201301220
511040004124123234
6222210421521212
716403506436303
oct2570536416150
9588223867258
10187996707944
1172802271221
1230527873208
13149605a40b6
149155c87b3a
154d547a342e
hex2bc57a1c68

187996707944 has 48 divisors (see below), whose sum is σ = 375706546020. Its totient is φ = 88169241600.

The previous prime is 187996707911. The next prime is 187996708019. The reversal of 187996707944 is 449707699781.

187996707944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 183569402500 + 4427305444 = 428450^2 + 66538^2 .

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 11 ways as a sum of consecutive naturals, for example, 30569 + ... + 613944.

Almost surely, 2187996707944 is an apocalyptic number.

It is an amenable number.

187996707944 is a deficient number, since it is larger than the sum of its proper divisors (187709838076).

187996707944 is a wasteful number, since it uses less digits than its factorization.

187996707944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644658 (or 644635 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 71.

The spelling of 187996707944 in words is "one hundred eighty-seven billion, nine hundred ninety-six million, seven hundred seven thousand, nine hundred forty-four".

Divisors: 1 2 4 8 19 38 76 101 152 202 361 404 722 808 1444 1919 2888 3838 7676 15352 36461 72922 145844 291688 644513 1289026 2578052 5156104 12245747 24491494 48982988 65095813 97965976 130191626 232669193 260383252 465338386 520766504 930676772 1236820447 1861353544 2473640894 4947281788 9894563576 23499588493 46999176986 93998353972 187996707944