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127040142 = 2321173357
BaseRepresentation
bin1111001001001…
…11101010001110
322212001022022110
413210213222032
5230010241032
620334524450
73101552265
oct744475216
9285038273
10127040142
1165790159
1236666726
13204204a8
1412c2d5dc
15b2467cc
hex7927a8e

127040142 has 8 divisors (see below), whose sum is σ = 254080296. Its totient is φ = 42346712.

The previous prime is 127040141. The next prime is 127040143. The reversal of 127040142 is 241040721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (127040141) and next prime (127040143).

It is a sphenic number, since it is the product of 3 distinct primes.

127040142 is an admirable number.

It is a super-2 number, since 2×1270401422 = 32278395358760328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127040141) 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, 10586673 + ... + 10586684.

It is an arithmetic number, because the mean of its divisors is an integer number (31760037).

Almost surely, 2127040142 is an apocalyptic number.

127040142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

127040142 is a wasteful number, since it uses less digits than its factorization.

127040142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21173362.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 127040142 is about 11271.2085421218. The cubic root of 127040142 is about 502.7055232162.

Adding to 127040142 its reverse (241040721), we get a palindrome (368080863).

The spelling of 127040142 in words is "one hundred twenty-seven million, forty thousand, one hundred forty-two".

Divisors: 1 2 3 6 21173357 42346714 63520071 127040142