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127716111020 = 225192341143569
BaseRepresentation
bin111011011110001111…
…0010011001010101100
3110012122202101122221002
41312330132103022230
54043030311023040
6134401051255432
712140632013621
oct1667436231254
9405582348832
10127716111020
114a189462583
1220903a4a578
13c074980934
146278032348
1534c75c5a15
hex1dbc7932ac

127716111020 has 48 divisors (see below), whose sum is σ = 282442389600. Its totient is φ = 48376673280.

The previous prime is 127716111011. The next prime is 127716111053. The reversal of 127716111020 is 20111617721.

It is a super-2 number, since 2×1277161110202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817796 + ... + 961364.

It is an arithmetic number, because the mean of its divisors is an integer number (5884216450).

Almost surely, 2127716111020 is an apocalyptic number.

127716111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127716111020 is an abundant number, since it is smaller than the sum of its proper divisors (154726278580).

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

127716111020 is a wasteful number, since it uses less digits than its factorization.

127716111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145938 (or 145936 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 29.

Adding to 127716111020 its reverse (20111617721), we get a palindrome (147827728741).

The spelling of 127716111020 in words is "one hundred twenty-seven billion, seven hundred sixteen million, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 2341 4682 9364 11705 23410 44479 46820 88958 143569 177916 222395 287138 444790 574276 717845 889580 1435690 2727811 2871380 5455622 10911244 13639055 27278110 54556220 336095029 672190058 1344380116 1680475145 3360950290 6385805551 6721900580 12771611102 25543222204 31929027755 63858055510 127716111020