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42590125 = 532931379
BaseRepresentation
bin1010001001110…
…1111110101101
32222010210200001
42202131332231
541400341000
64120504301
71025003314
oct242357655
988123601
1042590125
112204a656
121231b091
138a92776
14592927b
153b1446a
hex289dfad

42590125 has 32 divisors (see below), whose sum is σ = 56908800. Its totient is φ = 31752000.

The previous prime is 42590099. The next prime is 42590143. The reversal of 42590125 is 52109524.

It is not a de Polignac number, because 42590125 - 225 = 9035693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42590093 and 42590102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112186 + ... + 112564.

It is an arithmetic number, because the mean of its divisors is an integer number (1778400).

Almost surely, 242590125 is an apocalyptic number.

It is an amenable number.

42590125 is a deficient number, since it is larger than the sum of its proper divisors (14318675).

42590125 is a wasteful number, since it uses less digits than its factorization.

42590125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 42590125 is about 6526.1110165243. Note that the first 3 decimals coincide. The cubic root of 42590125 is about 349.2231067418.

Adding to 42590125 its reverse (52109524), we get a palindrome (94699649).

The spelling of 42590125 in words is "forty-two million, five hundred ninety thousand, one hundred twenty-five".

Divisors: 1 5 25 29 31 125 145 155 379 725 775 899 1895 3625 3875 4495 9475 10991 11749 22475 47375 54955 58745 112375 274775 293725 340721 1373875 1468625 1703605 8518025 42590125