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153421044133 = 725216009677
BaseRepresentation
bin1000111011100010011…
…0110101100110100101
3112200000011202120011211
42032320212311212211
510003201241403013
6154251453231421
714040626233600
oct2167046654645
9480004676154
10153421044133
115a07a1a8255
1225898492571
1311610262a26
1475d5c79337
153ece0e223d
hex23b89b59a5

153421044133 has 12 divisors (see below), whose sum is σ = 178811959212. Its totient is φ = 131251323840.

The previous prime is 153421044131. The next prime is 153421044149. The reversal of 153421044133 is 331440124351.

It can be written as a sum of positive squares in 2 ways, for example, as 73409567364 + 80011476769 = 270942^2 + 282863^2 .

It is not a de Polignac number, because 153421044133 - 21 = 153421044131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153421044095 and 153421044104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153421044131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2979310 + ... + 3030367.

It is an arithmetic number, because the mean of its divisors is an integer number (14900996601).

Almost surely, 2153421044133 is an apocalyptic number.

It is an amenable number.

153421044133 is a deficient number, since it is larger than the sum of its proper divisors (25390915079).

153421044133 is an equidigital number, since it uses as much as digits as its factorization.

153421044133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010212 (or 6010205 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 153421044133 its reverse (331440124351), we get a palindrome (484861168484).

The spelling of 153421044133 in words is "one hundred fifty-three billion, four hundred twenty-one million, forty-four thousand, one hundred thirty-three".

Divisors: 1 7 49 521 3647 25529 6009677 42067739 294474173 3131041717 21917292019 153421044133