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159104849 = 229694781
BaseRepresentation
bin10010111101110…
…11111101010001
3102002101100211012
421132323331101
5311212323344
623442100305
73641240351
oct1136737521
9362340735
10159104849
11818a0912
124534a695
1326c691a7
14171b8b61
15de7c29e
hex97bbf51

159104849 has 4 divisors (see below), whose sum is σ = 159799860. Its totient is φ = 158409840.

The previous prime is 159104809. The next prime is 159104863. The reversal of 159104849 is 948401951.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104448400 + 54656449 = 10220^2 + 7393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-159104849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159104809) 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, 347162 + ... + 347619.

It is an arithmetic number, because the mean of its divisors is an integer number (39949965).

Almost surely, 2159104849 is an apocalyptic number.

It is an amenable number.

159104849 is a deficient number, since it is larger than the sum of its proper divisors (695011).

159104849 is an equidigital number, since it uses as much as digits as its factorization.

159104849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695010.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 159104849 is about 12613.6770610318. The cubic root of 159104849 is about 541.8692070126.

The spelling of 159104849 in words is "one hundred fifty-nine million, one hundred four thousand, eight hundred forty-nine".

Divisors: 1 229 694781 159104849