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427282040 = 23523464437
BaseRepresentation
bin11001011101111…
…100111001111000
31002210000011202202
4121131330321320
51333341011130
6110222045332
713405560143
oct3135747170
91083004682
10427282040
111aa20a359
12bb119848
136a6a4413
1440a6705a
15277a2145
hex1977ce78

427282040 has 32 divisors (see below), whose sum is σ = 1003186080. Its totient is φ = 163481472.

The previous prime is 427282001. The next prime is 427282043. The reversal of 427282040 is 40282724.

It is a junction number, because it is equal to n+sod(n) for n = 427281994 and 427282012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427282043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231299 + ... + 233138.

It is an arithmetic number, because the mean of its divisors is an integer number (31349565).

Almost surely, 2427282040 is an apocalyptic number.

427282040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427282040 is an abundant number, since it is smaller than the sum of its proper divisors (575904040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427282040 is a wasteful number, since it uses less digits than its factorization.

427282040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464471 (or 464467 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 427282040 is about 20670.8016293515. The cubic root of 427282040 is about 753.1905795410.

The spelling of 427282040 in words is "four hundred twenty-seven million, two hundred eighty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 464437 928874 1857748 2322185 3715496 4644370 9288740 10682051 18577480 21364102 42728204 53410255 85456408 106820510 213641020 427282040