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7442000000000 = 21059612
BaseRepresentation
bin110110001001011100111…
…0001000011010000000000
3222100110002202221102002122
41230102321301003100000
51433412204000000000
623454450235303412
71365444461163626
oct154227161032000
928313082842078
107442000000000
11240a152a95345
12a023868aab68
1341ca15493577
141ba2a2461516
15cd8b4492085
hex6c4b9c43400

7442000000000 has 330 divisors, whose sum is σ = 18905762224206. Its totient is φ = 2928000000000.

The previous prime is 7441999999991. The next prime is 7442000000009. The reversal of 7442000000000 is 2447.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (7441999999991) and next prime (7442000000009).

It can be written as a sum of positive squares in 15 ways, for example, as 4199810830336 + 3242189169664 = 2049344^2 + 1800608^2 .

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7442000000009) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 121999999970 + ... + 122000000030.

Almost surely, 27442000000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7442000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9452881112103).

7442000000000 is an abundant number, since it is smaller than the sum of its proper divisors (11463762224206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7442000000000 is an frugal number, since it uses more digits than its factorization.

7442000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

Adding to 7442000000000 its reverse (2447), we get a palindrome (7442000002447).

The spelling of 7442000000000 in words is "seven trillion, four hundred forty-two billion", and thus it is an aban number.