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342444413 = 1720143789
BaseRepresentation
bin10100011010010…
…100100101111101
3212212100222102102
4110122110211331
51200131210123
653551434445
711325505133
oct2432244575
9785328372
10342444413
11166334613
1296825a25
1355c3c13c
14336a1753
15200e5028
hex1469497d

342444413 has 4 divisors (see below), whose sum is σ = 362588220. Its totient is φ = 322300608.

The previous prime is 342444407. The next prime is 342444457. The reversal of 342444413 is 314444243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314444243 = 1916549697.

It can be written as a sum of positive squares in 2 ways, for example, as 261210244 + 81234169 = 16162^2 + 9013^2 .

It is a cyclic number.

It is not a de Polignac number, because 342444413 - 212 = 342440317 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 (342444913) 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, 10071878 + ... + 10071911.

It is an arithmetic number, because the mean of its divisors is an integer number (90647055).

Almost surely, 2342444413 is an apocalyptic number.

It is an amenable number.

342444413 is a deficient number, since it is larger than the sum of its proper divisors (20143807).

342444413 is a wasteful number, since it uses less digits than its factorization.

342444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20143806.

The product of its digits is 18432, while the sum is 29.

The square root of 342444413 is about 18505.2536594341. The cubic root of 342444413 is about 699.6218454097.

Adding to 342444413 its reverse (314444243), we get a palindrome (656888656).

The spelling of 342444413 in words is "three hundred forty-two million, four hundred forty-four thousand, four hundred thirteen".

Divisors: 1 17 20143789 342444413