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10143025521 = 321173921683
BaseRepresentation
bin10010111001001001…
…00100100101110001
3222011212220002020220
421130210210211301
5131233103304041
64354252123253
7506232202656
oct113444444561
928155802226
1010143025521
114335523222
121b70a66529
13c58516965
146c3153c2d
153e5710d66
hex25c924971

10143025521 has 16 divisors (see below), whose sum is σ = 13607143680. Its totient is φ = 6720552720.

The previous prime is 10143025511. The next prime is 10143025523. The reversal of 10143025521 is 12552034101.

It is a happy number.

It is not a de Polignac number, because 10143025521 - 215 = 10142992753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10143025491 and 10143025500.

It is not an unprimeable number, because it can be changed into a prime (10143025523) 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, 456946 + ... + 478628.

It is an arithmetic number, because the mean of its divisors is an integer number (850446480).

Almost surely, 210143025521 is an apocalyptic number.

It is an amenable number.

10143025521 is a deficient number, since it is larger than the sum of its proper divisors (3464118159).

10143025521 is a wasteful number, since it uses less digits than its factorization.

10143025521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22636.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 10143025521 its reverse (12552034101), we get a palindrome (22695059622).

The spelling of 10143025521 in words is "ten billion, one hundred forty-three million, twenty-five thousand, five hundred twenty-one".

Divisors: 1 3 211 633 739 2217 21683 65049 155929 467787 4575113 13725339 16023737 48071211 3381008507 10143025521