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142125425 = 52136167107
BaseRepresentation
bin10000111100010…
…10100101110001
3100220102201102122
420132022211301
5242341003200
622034124025
73344021561
oct1036124561
9326381378
10142125425
1173253a32
123b720615
13235a28b0
1414c38da1
15c726385
hex878a971

142125425 has 48 divisors (see below), whose sum is σ = 197612352. Its totient is φ = 100742400.

The previous prime is 142125419. The next prime is 142125439. The reversal of 142125425 is 524521241.

It is not a de Polignac number, because 142125425 - 210 = 142124401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142125394 and 142125403.

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 47 ways as a sum of consecutive naturals, for example, 1328222 + ... + 1328328.

It is an arithmetic number, because the mean of its divisors is an integer number (4116924).

Almost surely, 2142125425 is an apocalyptic number.

It is an amenable number.

142125425 is a deficient number, since it is larger than the sum of its proper divisors (55486927).

142125425 is a wasteful number, since it uses less digits than its factorization.

142125425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 253 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 142125425 is about 11921.6368423132. The cubic root of 142125425 is about 521.8639039318.

Adding to 142125425 its reverse (524521241), we get a palindrome (666646666).

The spelling of 142125425 in words is "one hundred forty-two million, one hundred twenty-five thousand, four hundred twenty-five".

Divisors: 1 5 13 25 61 65 67 107 305 325 335 535 793 871 1391 1525 1675 2675 3965 4087 4355 6527 6955 7169 19825 20435 21775 32635 34775 35845 53131 84851 93197 102175 163175 179225 265655 424255 437309 465985 1328275 2121275 2186545 2329925 5685017 10932725 28425085 142125425