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145053223432 = 23139714378789
BaseRepresentation
bin1000011100010111011…
…0001000101000001000
3111212102000020020010121
42013011312020220020
54334032111122212
6150345253553024
713323361025065
oct2070566105010
9455360206117
10145053223432
1156575843757
1224142045774
13108a8767230
1470407c5c6c
153b8e68cd07
hex21c5d88a08

145053223432 has 32 divisors (see below), whose sum is σ = 295915498200. Its totient is φ = 66257455104.

The previous prime is 145053223423. The next prime is 145053223457. The reversal of 145053223432 is 234322350541.

It can be written as a sum of positive squares in 4 ways, for example, as 131097581476 + 13955641956 = 362074^2 + 118134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7179307 + ... + 7199482.

Almost surely, 2145053223432 is an apocalyptic number.

It is an amenable number.

145053223432 is an abundant number, since it is smaller than the sum of its proper divisors (150862274768).

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

145053223432 is a wasteful number, since it uses less digits than its factorization.

145053223432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14378905 (or 14378901 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 145053223432 its reverse (234322350541), we get a palindrome (379375573973).

The spelling of 145053223432 in words is "one hundred forty-five billion, fifty-three million, two hundred twenty-three thousand, four hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 97 104 194 388 776 1261 2522 5044 10088 14378789 28757578 57515156 115030312 186924257 373848514 747697028 1394742533 1495394056 2789485066 5578970132 11157940264 18131652929 36263305858 72526611716 145053223432