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147354149 = 193763493
BaseRepresentation
bin10001100100001…
…11001000100101
3101021021100220002
420302013020211
5300210313044
622342151045
73436326635
oct1062071045
9337240802
10147354149
11761a5398
1241422485
13246b3807
14157da6c5
15ce0a74e
hex8c87225

147354149 has 4 divisors (see below), whose sum is σ = 148117836. Its totient is φ = 146590464.

The previous prime is 147354143. The next prime is 147354161. The reversal of 147354149 is 941453741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941453741 = 1974778953.

It can be written as a sum of positive squares in 2 ways, for example, as 87291649 + 60062500 = 9343^2 + 7750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-147354149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147354143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381554 + ... + 381939.

It is an arithmetic number, because the mean of its divisors is an integer number (37029459).

Almost surely, 2147354149 is an apocalyptic number.

It is an amenable number.

147354149 is a deficient number, since it is larger than the sum of its proper divisors (763687).

147354149 is an equidigital number, since it uses as much as digits as its factorization.

147354149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763686.

The product of its digits is 60480, while the sum is 38.

The square root of 147354149 is about 12138.9517257463. The cubic root of 147354149 is about 528.1866938607.

The spelling of 147354149 in words is "one hundred forty-seven million, three hundred fifty-four thousand, one hundred forty-nine".

Divisors: 1 193 763493 147354149