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340031501 = 1720001853
BaseRepresentation
bin10100010001000…
…111100000001101
3212200211101112022
4110101013200031
51144022002001
653424015525
711266135325
oct2421074015
9780741468
10340031501
11164a36777
1295a615a5
13555a5a94
1433234285
151ecba11b
hex1444780d

340031501 has 4 divisors (see below), whose sum is σ = 360033372. Its totient is φ = 320029632.

The previous prime is 340031473. The next prime is 340031509. The reversal of 340031501 is 105130043.

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 151930276 + 188101225 = 12326^2 + 13715^2 .

It is a cyclic number.

It is not a de Polignac number, because 340031501 - 218 = 339769357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 20001853 = 340031501 / (3 + 4 + 0 + 0 + 3 + 1 + 5 + 0 + 1).

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 340031501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340031509) 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, 10000910 + ... + 10000943.

It is an arithmetic number, because the mean of its divisors is an integer number (90008343).

Almost surely, 2340031501 is an apocalyptic number.

It is an amenable number.

340031501 is a deficient number, since it is larger than the sum of its proper divisors (20001871).

340031501 is a wasteful number, since it uses less digits than its factorization.

340031501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20001870.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 340031501 is about 18439.9430855955. The cubic root of 340031501 is about 697.9747591467.

Adding to 340031501 its reverse (105130043), we get a palindrome (445161544).

The spelling of 340031501 in words is "three hundred forty million, thirty-one thousand, five hundred one".

Divisors: 1 17 20001853 340031501