Search a number
-
+
142450602621 = 31718891478639
BaseRepresentation
bin1000010010101010110…
…1111011001001111101
3111121200121221101120020
42010222231323021331
54313214323240441
6145235122442353
713202026100235
oct2045255731175
9447617841506
10142450602621
115545a719168
12237365033b9
13105824b7412
146c74ca0cc5
153a8ae40e66
hex212ab7b27d

142450602621 has 16 divisors (see below), whose sum is σ = 201213331200. Its totient is φ = 89333393408.

The previous prime is 142450602589. The next prime is 142450602647. The reversal of 142450602621 is 126206054241.

It is a cyclic number.

It is not a de Polignac number, because 142450602621 - 25 = 142450602589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142450602221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642981 + ... + 835658.

It is an arithmetic number, because the mean of its divisors is an integer number (12575833200).

Almost surely, 2142450602621 is an apocalyptic number.

It is an amenable number.

142450602621 is a deficient number, since it is larger than the sum of its proper divisors (58762728579).

142450602621 is a wasteful number, since it uses less digits than its factorization.

142450602621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480548.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 142450602621 its reverse (126206054241), we get a palindrome (268656656862).

The spelling of 142450602621 in words is "one hundred forty-two billion, four hundred fifty million, six hundred two thousand, six hundred twenty-one".

Divisors: 1 3 17 51 1889 5667 32113 96339 1478639 4435917 25136863 75410589 2793149071 8379447213 47483534207 142450602621