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127389685380 = 223517911861237
BaseRepresentation
bin111011010100100000…
…1000101011010000100
3110011211000011112010120
41312221001011122010
54041343224413010
6134304431021540
712126556313436
oct1665101053204
9404730145116
10127389685380
114a03117a121
122083266a8b0
13c02215ca79
146246940656
1534a8ae6e70
hex1da9045684

127389685380 has 48 divisors (see below), whose sum is σ = 358683837120. Its totient is φ = 33780800128.

The previous prime is 127389685343. The next prime is 127389685387. The reversal of 127389685380 is 83586983721.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (127389685387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5919879 + ... + 5941358.

It is an arithmetic number, because the mean of its divisors is an integer number (7472579940).

Almost surely, 2127389685380 is an apocalyptic number.

127389685380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127389685380 is an abundant number, since it is smaller than the sum of its proper divisors (231294151740).

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

127389685380 is a wasteful number, since it uses less digits than its factorization.

127389685380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11861428 (or 11861426 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 127389685380 in words is "one hundred twenty-seven billion, three hundred eighty-nine million, six hundred eighty-five thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 179 358 537 716 895 1074 1790 2148 2685 3580 5370 10740 11861237 23722474 35583711 47444948 59306185 71167422 118612370 142334844 177918555 237224740 355837110 711674220 2123161423 4246322846 6369484269 8492645692 10615807115 12738968538 21231614230 25477937076 31847421345 42463228460 63694842690 127389685380