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127681473080 = 2357456005261
BaseRepresentation
bin111011011101001101…
…0001010101000111000
3110012120100012212121102
41312322122022220320
54042442424114310
6134353413030532
712140031420440
oct1667232125070
9405510185542
10127681473080
114a170954587
12208b4325448
13c06a743905
1462735b7120
1534c45328a5
hex1dba68aa38

127681473080 has 32 divisors (see below), whose sum is σ = 328323788640. Its totient is φ = 43776504960.

The previous prime is 127681473071. The next prime is 127681473103. The reversal of 127681473080 is 80374186721.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 228002351 + ... + 228002910.

It is an arithmetic number, because the mean of its divisors is an integer number (10260118395).

Almost surely, 2127681473080 is an apocalyptic number.

127681473080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127681473080 is an abundant number, since it is smaller than the sum of its proper divisors (200642315560).

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

127681473080 is a wasteful number, since it uses less digits than its factorization.

127681473080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456005279 (or 456005275 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 127681473080 in words is "one hundred twenty-seven billion, six hundred eighty-one million, four hundred seventy-three thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 456005261 912010522 1824021044 2280026305 3192036827 3648042088 4560052610 6384073654 9120105220 12768147308 15960184135 18240210440 25536294616 31920368270 63840736540 127681473080