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142453025 = 52111339847
BaseRepresentation
bin10000111110110…
…10100100100001
3100221001100210222
420133122210201
5242431444100
622045132425
73346554641
oct1037324441
9327040728
10142453025
1173458080
123b85a115
1323688a40
1414cc2521
15c78d485
hex87da921

142453025 has 24 divisors (see below), whose sum is σ = 207528384. Its totient is φ = 95630400.

The previous prime is 142453019. The next prime is 142453039. The reversal of 142453025 is 520354241.

It is a happy number.

It is not a de Polignac number, because 142453025 - 24 = 142453009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142452985 and 142453003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16349 + ... + 23498.

It is an arithmetic number, because the mean of its divisors is an integer number (8647016).

Almost surely, 2142453025 is an apocalyptic number.

It is an amenable number.

142453025 is a deficient number, since it is larger than the sum of its proper divisors (65075359).

142453025 is a wasteful number, since it uses less digits than its factorization.

142453025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39881 (or 39876 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 142453025 is about 11935.3686579008. The cubic root of 142453025 is about 522.2645627777.

The spelling of 142453025 in words is "one hundred forty-two million, four hundred fifty-three thousand, twenty-five".

Divisors: 1 5 11 13 25 55 65 143 275 325 715 3575 39847 199235 438317 518011 996175 2191585 2590055 5698121 10957925 12950275 28490605 142453025