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427944925 = 52312112617
BaseRepresentation
bin11001100000011…
…110101111011101
31002211020212002001
4121200132233131
51334023214200
6110244202301
713414320562
oct3140365735
91084225061
10427944925
111aa6223a1
12bb399391
136a877065
1440b9a869
152788376a
hex1981ebdd

427944925 has 24 divisors (see below), whose sum is σ = 550575872. Its totient is φ = 329616000.

The previous prime is 427944911. The next prime is 427944931. The reversal of 427944925 is 529449724.

It is a de Polignac number, because none of the positive numbers 2k-427944925 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162217 + ... + 164833.

Almost surely, 2427944925 is an apocalyptic number.

It is an amenable number.

427944925 is a deficient number, since it is larger than the sum of its proper divisors (122630947).

427944925 is a wasteful number, since it uses less digits than its factorization.

427944925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869 (or 2864 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 427944925 is about 20686.8297474504. The cubic root of 427944925 is about 753.5798780366.

The spelling of 427944925 in words is "four hundred twenty-seven million, nine hundred forty-four thousand, nine hundred twenty-five".

Divisors: 1 5 25 31 155 211 775 1055 2617 5275 6541 13085 32705 65425 81127 163525 405635 552187 2028175 2760935 13804675 17117797 85588985 427944925