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42121423214 = 2131620054739
BaseRepresentation
bin100111001110101000…
…011110100101101110
311000201111220000001122
4213032220132211232
51142231041020324
631203400140542
73020544122063
oct471650364556
9130644800048
1042121423214
1116955499772
1281b6467752
133c83731580
142078232c6a
151167d81a5e
hex9cea1e96e

42121423214 has 8 divisors (see below), whose sum is σ = 68042299080. Its totient is φ = 19440656856.

The previous prime is 42121423213. The next prime is 42121423249. The reversal of 42121423214 is 41232412124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 1620054739 = 42121423214 / (4 + 2 + 1 + 2 + 1 + 4 + 2 + 3 + 2 + 1 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121423213) 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, 810027344 + ... + 810027395.

It is an arithmetic number, because the mean of its divisors is an integer number (8505287385).

Almost surely, 242121423214 is an apocalyptic number.

42121423214 is a deficient number, since it is larger than the sum of its proper divisors (25920875866).

42121423214 is a wasteful number, since it uses less digits than its factorization.

42121423214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620054754.

The product of its digits is 3072, while the sum is 26.

Adding to 42121423214 its reverse (41232412124), we get a palindrome (83353835338).

The spelling of 42121423214 in words is "forty-two billion, one hundred twenty-one million, four hundred twenty-three thousand, two hundred fourteen".

Divisors: 1 2 13 26 1620054739 3240109478 21060711607 42121423214