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127982375740 = 2256399118787
BaseRepresentation
bin111011100110001011…
…0000001001100111100
3110020100022102022110101
41313030112001030330
54044101442010430
6134443322250444
712150344146612
oct1671426011474
9406308368411
10127982375740
114a30579516a
1220979056a24
13c0b7b9951b
1462a15436b2
1534e0b6ddca
hex1dcc58133c

127982375740 has 12 divisors (see below), whose sum is σ = 268762989096. Its totient is φ = 51192950288.

The previous prime is 127982375659. The next prime is 127982375749. The reversal of 127982375740 is 47573289721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127982375749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3199559374 + ... + 3199559413.

It is an arithmetic number, because the mean of its divisors is an integer number (22396915758).

Almost surely, 2127982375740 is an apocalyptic number.

127982375740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127982375740 is an abundant number, since it is smaller than the sum of its proper divisors (140780613356).

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

127982375740 is a wasteful number, since it uses less digits than its factorization.

127982375740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399118796 (or 6399118794 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 127982375740 in words is "one hundred twenty-seven billion, nine hundred eighty-two million, three hundred seventy-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 6399118787 12798237574 25596475148 31995593935 63991187870 127982375740