Search a number
-
+
351242101 = 750177443
BaseRepresentation
bin10100111011111…
…000011101110101
3220110220221120201
4110323320131311
51204404221401
654504200501
711463336310
oct2473703565
9813827521
10351242101
111702a3431
1299769131
13579cc682
1434911977
1520c81b01
hex14ef8775

351242101 has 4 divisors (see below), whose sum is σ = 401419552. Its totient is φ = 301064652.

The previous prime is 351242063. The next prime is 351242123. The reversal of 351242101 is 101242153.

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: 101242153 = 307329779.

It is not a de Polignac number, because 351242101 - 217 = 351111029 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 (351242161) 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, 25088715 + ... + 25088728.

It is an arithmetic number, because the mean of its divisors is an integer number (100354888).

Almost surely, 2351242101 is an apocalyptic number.

It is an amenable number.

351242101 is a deficient number, since it is larger than the sum of its proper divisors (50177451).

351242101 is an equidigital number, since it uses as much as digits as its factorization.

351242101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50177450.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 351242101 is about 18741.4540791263. The cubic root of 351242101 is about 705.5625515150.

Adding to 351242101 its reverse (101242153), we get a palindrome (452484254).

The spelling of 351242101 in words is "three hundred fifty-one million, two hundred forty-two thousand, one hundred one".

Divisors: 1 7 50177443 351242101