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8134647157 = 71389391727
BaseRepresentation
bin1111001001101110…
…01101110101110101
3202222220202220002001
413210313031311311
5113124432202112
63423105415301
7405404234320
oct74467156565
922886686061
108134647157
1134a488389a
1216b033a531
139c83c7bb0
145725177b7
15329245c57
hex1e4dcdd75

8134647157 has 8 divisors (see below), whose sum is σ = 10011873536. Its totient is φ = 6436204272.

The previous prime is 8134647139. The next prime is 8134647167. The reversal of 8134647157 is 7517464318.

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 8134647157 - 27 = 8134647029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8134647127) 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, 44695773 + ... + 44695954.

It is an arithmetic number, because the mean of its divisors is an integer number (1251484192).

Almost surely, 28134647157 is an apocalyptic number.

It is an amenable number.

8134647157 is a deficient number, since it is larger than the sum of its proper divisors (1877226379).

8134647157 is a wasteful number, since it uses less digits than its factorization.

8134647157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89391747.

The product of its digits is 564480, while the sum is 46.

The square root of 8134647157 is about 90192.2788103283. The cubic root of 8134647157 is about 2011.1582276226.

The spelling of 8134647157 in words is "eight billion, one hundred thirty-four million, six hundred forty-seven thousand, one hundred fifty-seven".

Divisors: 1 7 13 91 89391727 625742089 1162092451 8134647157