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147996073 = 197789267
BaseRepresentation
bin10001101001000…
…11110110101001
3101022110222110001
420310203312221
5300341333243
622404023001
73444642301
oct1064436651
9338428401
10147996073
11765a3705
1241691a61
1324879a54
1415926601
15ced5a4d
hex8d23da9

147996073 has 4 divisors (see below), whose sum is σ = 155785360. Its totient is φ = 140206788.

The previous prime is 147996061. The next prime is 147996109. The reversal of 147996073 is 370699741.

147996073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370699741 = 1828920269.

It is a cyclic number.

It is not a de Polignac number, because 147996073 - 213 = 147987881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147996473) 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, 3894615 + ... + 3894652.

It is an arithmetic number, because the mean of its divisors is an integer number (38946340).

Almost surely, 2147996073 is an apocalyptic number.

It is an amenable number.

147996073 is a deficient number, since it is larger than the sum of its proper divisors (7789287).

147996073 is an equidigital number, since it uses as much as digits as its factorization.

147996073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789286.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 147996073 is about 12165.3636608200. The cubic root of 147996073 is about 528.9525688156.

The spelling of 147996073 in words is "one hundred forty-seven million, nine hundred ninety-six thousand, seventy-three".

Divisors: 1 19 7789267 147996073