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42102432241 = 154327286087
BaseRepresentation
bin100111001101100000…
…000010000111110001
311000200012011011100021
4213031200002013301
51142211210312431
631201441123441
73020223524602
oct471540020761
9130605134307
1042102432241
11169457a8551
1281b0029581
133c7c8124cc
1420758cbda9
15116637eb11
hex9cd8021f1

42102432241 has 4 divisors (see below), whose sum is σ = 42129719872. Its totient is φ = 42075144612.

The previous prime is 42102432223. The next prime is 42102432269. The reversal of 42102432241 is 14223420124.

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.

It is a cyclic number.

It is not a de Polignac number, because 42102432241 - 227 = 41968214513 is a prime.

It is a super-2 number, since 2×421024322412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42102432341) 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, 13641501 + ... + 13644586.

It is an arithmetic number, because the mean of its divisors is an integer number (10532429968).

Almost surely, 242102432241 is an apocalyptic number.

It is an amenable number.

42102432241 is a deficient number, since it is larger than the sum of its proper divisors (27287631).

42102432241 is a wasteful number, since it uses less digits than its factorization.

42102432241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27287630.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42102432241 its reverse (14223420124), we get a palindrome (56325852365).

The spelling of 42102432241 in words is "forty-two billion, one hundred two million, four hundred thirty-two thousand, two hundred forty-one".

Divisors: 1 1543 27286087 42102432241