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123410341442 = 261705170721
BaseRepresentation
bin111001011101111010…
…1000101111001000010
3102210112200022220110202
41302323311011321002
54010221021411232
6132405515525202
711626136410553
oct1627365057102
9383480286422
10123410341442
1148379a14123
121bb01a59802
13b8398c129b
145d8a24632a
1533245a2162
hex1cbbd45e42

123410341442 has 4 divisors (see below), whose sum is σ = 185115512166. Its totient is φ = 61705170720.

The previous prime is 123410341429. The next prime is 123410341487. The reversal of 123410341442 is 244143014321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244143014321 = 1840113267921.

It can be written as a sum of positive squares in only one way, i.e., 67813888921 + 55596452521 = 260411^2 + 235789^2 .

It is a super-2 number, since 2×1234103414422 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30852585359 + ... + 30852585362.

Almost surely, 2123410341442 is an apocalyptic number.

123410341442 is a deficient number, since it is larger than the sum of its proper divisors (61705170724).

123410341442 is an equidigital number, since it uses as much as digits as its factorization.

123410341442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61705170723.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 123410341442 its reverse (244143014321), we get a palindrome (367553355763).

The spelling of 123410341442 in words is "one hundred twenty-three billion, four hundred ten million, three hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 61705170721 123410341442