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127427972 = 227291391129
BaseRepresentation
bin1111001100001…
…10010110000100
322212210000022112
413212012112010
5230110143342
620351120152
73105056060
oct746062604
9285700275
10127427972
1165a25581
1236813058
1320527b89
1412cd0aa0
15b2c1682
hex7986584

127427972 has 48 divisors (see below), whose sum is σ = 265776000. Its totient is φ = 52303104.

The previous prime is 127427969. The next prime is 127428013. The reversal of 127427972 is 279724721.

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, 112304 + ... + 113432.

It is an arithmetic number, because the mean of its divisors is an integer number (5537000).

Almost surely, 2127427972 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 127427972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132888000).

127427972 is an abundant number, since it is smaller than the sum of its proper divisors (138348028).

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

127427972 is a wasteful number, since it uses less digits than its factorization.

127427972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1306 counting only the distinct ones).

The product of its digits is 98784, while the sum is 41.

The square root of 127427972 is about 11288.3998866093. The cubic root of 127427972 is about 503.2165591224.

The spelling of 127427972 in words is "one hundred twenty-seven million, four hundred twenty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 29 58 116 139 203 278 406 556 812 973 1129 1946 2258 3892 4031 4516 7903 8062 15806 16124 28217 31612 32741 56434 65482 112868 130964 156931 229187 313862 458374 627724 916748 1098517 2197034 4394068 4550999 9101998 18203996 31856993 63713986 127427972