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7342856189 = 171284133637
BaseRepresentation
bin1101101011010101…
…10001011111111101
3200221201212202001122
412311222301133331
5110014232344224
63212342520325
7346651150664
oct66552613775
920851782048
107342856189
11312893a599
12150b1360a5
1390035a626
144d92c7ddb
152ce99115e
hex1b5ab17fd

7342856189 has 8 divisors (see below), whose sum is σ = 7775625528. Its totient is φ = 6910179840.

The previous prime is 7342856167. The next prime is 7342856207. The reversal of 7342856189 is 9816582437.

It can be written as a sum of positive squares in 4 ways, for example, as 512660164 + 6830196025 = 22642^2 + 82645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7342856189 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 7342856189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7342856119) 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, 201479 + ... + 235115.

It is an arithmetic number, because the mean of its divisors is an integer number (971953191).

Almost surely, 27342856189 is an apocalyptic number.

It is an amenable number.

7342856189 is a deficient number, since it is larger than the sum of its proper divisors (432769339).

7342856189 is a wasteful number, since it uses less digits than its factorization.

7342856189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46495.

The product of its digits is 2903040, while the sum is 53.

The square root of 7342856189 is about 85690.4673169659. The cubic root of 7342856189 is about 1943.6661631193. Note that the first 3 decimals are identical.

The spelling of 7342856189 in words is "seven billion, three hundred forty-two million, eight hundred fifty-six thousand, one hundred eighty-nine".

Divisors: 1 17 12841 33637 218297 571829 431932717 7342856189