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15681688741076 = 22191216116967191
BaseRepresentation
bin1110010000110010110101…
…1111001010010011010100
32001112011011211222102222112
43210030231133022103110
54023412044304203301
653204022433050152
73205651602656441
oct344145537122324
961464154872875
1015681688741076
114aa6626523336
1219132719b6958
13899a13b18767
143c2dd7cc89c8
151c2db3d7d9bb
hexe432d7ca4d4

15681688741076 has 24 divisors (see below), whose sum is σ = 28889698474560. Its totient is φ = 7427557094400.

The previous prime is 15681688741073. The next prime is 15681688741129. The reversal of 15681688741076 is 67014788618651.

15681688741076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15681688740997 and 15681688741015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15681688741073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7559360 + ... + 9407831.

It is an arithmetic number, because the mean of its divisors is an integer number (1203737436440).

Almost surely, 215681688741076 is an apocalyptic number.

It is an amenable number.

15681688741076 is a deficient number, since it is larger than the sum of its proper divisors (13208009733484).

15681688741076 is a wasteful number, since it uses less digits than its factorization.

15681688741076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16979375 (or 16979373 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 68.

The spelling of 15681688741076 in words is "fifteen trillion, six hundred eighty-one billion, six hundred eighty-eight million, seven hundred forty-one thousand, seventy-six".

Divisors: 1 2 4 19 38 76 12161 24322 48644 231059 462118 924236 16967191 33934382 67868764 322376629 644753258 1289506516 206338009751 412676019502 825352039004 3920422185269 7840844370538 15681688741076