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153013540321 = 403873788683
BaseRepresentation
bin1000111010000001010…
…0010101010111100001
3112121221202222020001001
42032200110111113201
510001332431242241
6154143215112001
714024550430045
oct2164024252741
9477852866031
10153013540321
1159990177644
12257a3b12601
13115769c4b05
147597ac0025
153ea844a431
hex23a05155e1

153013540321 has 4 divisors (see below), whose sum is σ = 153017369392. Its totient is φ = 153009711252.

The previous prime is 153013540319. The next prime is 153013540331. The reversal of 153013540321 is 123045310351.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123045310351 = 159597710089.

It is a cyclic number.

It is not a de Polignac number, because 153013540321 - 21 = 153013540319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153013540321.

It is not an unprimeable number, because it can be changed into a prime (153013540331) 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, 1853955 + ... + 1934728.

It is an arithmetic number, because the mean of its divisors is an integer number (38254342348).

Almost surely, 2153013540321 is an apocalyptic number.

It is an amenable number.

153013540321 is a deficient number, since it is larger than the sum of its proper divisors (3829071).

153013540321 is an equidigital number, since it uses as much as digits as its factorization.

153013540321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829070.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 153013540321 its reverse (123045310351), we get a palindrome (276058850672).

The spelling of 153013540321 in words is "one hundred fifty-three billion, thirteen million, five hundred forty thousand, three hundred twenty-one".

Divisors: 1 40387 3788683 153013540321