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127988448 = 2537283673
BaseRepresentation
bin1111010000011…
…11001011100000
322220211111010220
413220033023200
5230231112243
620411123040
73112612110
oct750171340
9286744126
10127988448
1166278685
1236a43480
1320693013
1412dd9040
15b382783
hex7a0f2e0

127988448 has 96 divisors (see below), whose sum is σ = 385894656. Its totient is φ = 36384768.

The previous prime is 127988447. The next prime is 127988489. The reversal of 127988448 is 844889721.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 127988448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127988447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189840 + ... + 190512.

It is an arithmetic number, because the mean of its divisors is an integer number (4019736).

Almost surely, 2127988448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127988448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192947328).

127988448 is an abundant number, since it is smaller than the sum of its proper divisors (257906208).

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

127988448 is a wasteful number, since it uses less digits than its factorization.

127988448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 968 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 51.

The square root of 127988448 is about 11313.1979563694. The cubic root of 127988448 is about 503.9532584519.

The spelling of 127988448 in words is "one hundred twenty-seven million, nine hundred eighty-eight thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 283 336 566 672 673 849 1132 1346 1698 1981 2019 2264 2692 3396 3962 4038 4528 4711 5384 5943 6792 7924 8076 9056 9422 10768 11886 13584 14133 15848 16152 18844 21536 23772 27168 28266 31696 32304 37688 47544 56532 63392 64608 75376 95088 113064 150752 190176 190459 226128 380918 452256 571377 761836 1142754 1333213 1523672 2285508 2666426 3047344 3999639 4571016 5332852 6094688 7999278 9142032 10665704 15998556 18284064 21331408 31997112 42662816 63994224 127988448