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27071240401 = 171231580987
BaseRepresentation
bin11001001101100100…
…100101100011010001
32120212122022111111101
4121031210211203101
5420420214143101
620234130344401
71645564514062
oct311544454321
976778274441
1027071240401
1110532011657
1252b612b101
132725694b5a
14144b4a8569
15a86958401
hex64d9258d1

27071240401 has 4 divisors (see below), whose sum is σ = 27072838512. Its totient is φ = 27069642292.

The previous prime is 27071240381. The next prime is 27071240407. The reversal of 27071240401 is 10404217072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27071240401 - 25 = 27071240369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27071240401.

It is not an unprimeable number, because it can be changed into a prime (27071240407) 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, 773371 + ... + 807616.

It is an arithmetic number, because the mean of its divisors is an integer number (6768209628).

Almost surely, 227071240401 is an apocalyptic number.

It is an amenable number.

27071240401 is a deficient number, since it is larger than the sum of its proper divisors (1598111).

27071240401 is a wasteful number, since it uses less digits than its factorization.

27071240401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598110.

The product of its (nonzero) digits is 3136, while the sum is 28.

Adding to 27071240401 its reverse (10404217072), we get a palindrome (37475457473).

It can be divided in two parts, 270712 and 40401, that added together give a palindrome (311113).

The spelling of 27071240401 in words is "twenty-seven billion, seventy-one million, two hundred forty thousand, four hundred one".

Divisors: 1 17123 1580987 27071240401