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127620147 = 3149328493
BaseRepresentation
bin1111001101101…
…01010000110011
322220010202221010
413212311100303
5230132321042
620355202003
73106516254
oct746652063
9286122833
10127620147
11660469a6
12368a6303
13205944a5
1412d40b2b
15b30d59c
hex79b5433

127620147 has 8 divisors (see below), whose sum is σ = 170280144. Its totient is φ = 85020128.

The previous prime is 127620137. The next prime is 127620151. The reversal of 127620147 is 741026721.

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

It is a cyclic number.

It is not a de Polignac number, because 127620147 - 26 = 127620083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127620107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9768 + ... + 18725.

It is an arithmetic number, because the mean of its divisors is an integer number (21285018).

Almost surely, 2127620147 is an apocalyptic number.

127620147 is a deficient number, since it is larger than the sum of its proper divisors (42659997).

127620147 is a wasteful number, since it uses less digits than its factorization.

127620147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29989.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 127620147 is about 11296.9087364641. The cubic root of 127620147 is about 503.4694001778.

Adding to 127620147 its reverse (741026721), we get a palindrome (868646868).

The spelling of 127620147 in words is "one hundred twenty-seven million, six hundred twenty thousand, one hundred forty-seven".

Divisors: 1 3 1493 4479 28493 85479 42540049 127620147