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127542055 = 525508411
BaseRepresentation
bin1111001101000…
…10001100100111
322212222210210211
413212202030213
5230122321210
620353400251
73106042504
oct746421447
9285883724
10127542055
1165aa3263
1236869087
1320567a94
1412d204ab
15b2e538a
hex79a2327

127542055 has 4 divisors (see below), whose sum is σ = 153050472. Its totient is φ = 102033640.

The previous prime is 127542053. The next prime is 127542101. The reversal of 127542055 is 550245721.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 127542055 - 21 = 127542053 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127542053) 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, 12754201 + ... + 12754210.

It is an arithmetic number, because the mean of its divisors is an integer number (38262618).

Almost surely, 2127542055 is an apocalyptic number.

127542055 is a deficient number, since it is larger than the sum of its proper divisors (25508417).

127542055 is an equidigital number, since it uses as much as digits as its factorization.

127542055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25508416.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 127542055 is about 11293.4518638014. The cubic root of 127542055 is about 503.3666866290.

Adding to 127542055 its reverse (550245721), we get a palindrome (677787776).

The spelling of 127542055 in words is "one hundred twenty-seven million, five hundred forty-two thousand, fifty-five".

Divisors: 1 5 25508411 127542055