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127040252 = 22171868239
BaseRepresentation
bin1111001001001…
…11101011111100
322212001022110112
413210213223330
5230010242002
620334525152
73101552513
oct744475374
9285038415
10127040252
1165790249
12366667b8
1320420561
1412c2d67a
15b246852
hex7927afc

127040252 has 12 divisors (see below), whose sum is σ = 235398240. Its totient is φ = 59783616.

The previous prime is 127040227. The next prime is 127040261. The reversal of 127040252 is 252040721.

It is a happy number.

It is a super-2 number, since 2×1270402522 = 32278451256447008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934052 + ... + 934187.

It is an arithmetic number, because the mean of its divisors is an integer number (19616520).

Almost surely, 2127040252 is an apocalyptic number.

It is an amenable number.

127040252 is a deficient number, since it is larger than the sum of its proper divisors (108357988).

127040252 is a wasteful number, since it uses less digits than its factorization.

127040252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868260 (or 1868258 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 127040252 is about 11271.2134218104. The cubic root of 127040252 is about 502.7056683084.

Adding to 127040252 its reverse (252040721), we get a palindrome (379080973).

The spelling of 127040252 in words is "one hundred twenty-seven million, forty thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 1868239 3736478 7472956 31760063 63520126 127040252