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40275025 = 527230143
BaseRepresentation
bin1001100110100…
…0110001010001
32210210011221121
42121220301101
540302300100
63555122241
7666221620
oct231506121
983704847
1040275025
112080924a
12115a3381
138461a9b
1454c56b7
15380851a
hex2668c51

40275025 has 12 divisors (see below), whose sum is σ = 57075712. Its totient is φ = 27617040.

The previous prime is 40275017. The next prime is 40275029. The reversal of 40275025 is 52057204.

It is not a de Polignac number, because 40275025 - 23 = 40275017 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40275029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114897 + ... + 115246.

Almost surely, 240275025 is an apocalyptic number.

It is an amenable number.

40275025 is a deficient number, since it is larger than the sum of its proper divisors (16800687).

40275025 is a wasteful number, since it uses less digits than its factorization.

40275025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230160 (or 230155 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 40275025 is about 6346.2607100560. The cubic root of 40275025 is about 342.7772099954. Note that the first 3 decimals are identical.

The spelling of 40275025 in words is "forty million, two hundred seventy-five thousand, twenty-five".

Divisors: 1 5 7 25 35 175 230143 1150715 1611001 5753575 8055005 40275025