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487515040 = 2553046969
BaseRepresentation
bin11101000011101…
…110001110100000
31020222100022220121
4131003232032200
51444300440130
6120213050024
715036544435
oct3503561640
91228308817
10487515040
1123020a2a1
12117326914
137a00344c
1448a65b8c
152cbedd7a
hex1d0ee3a0

487515040 has 24 divisors (see below), whose sum is σ = 1151754660. Its totient is φ = 195005952.

The previous prime is 487515029. The next prime is 487515043. The reversal of 487515040 is 40515784.

It can be written as a sum of positive squares in 2 ways, for example, as 429815824 + 57699216 = 20732^2 + 7596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 487514987 and 487515005.

It is not an unprimeable number, because it can be changed into a prime (487515043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523325 + ... + 1523644.

Almost surely, 2487515040 is an apocalyptic number.

487515040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

487515040 is an abundant number, since it is smaller than the sum of its proper divisors (664239620).

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

487515040 is a wasteful number, since it uses less digits than its factorization.

487515040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046984 (or 3046976 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 487515040 is about 22079.7427521246. The cubic root of 487515040 is about 787.0385518654.

The spelling of 487515040 in words is "four hundred eighty-seven million, five hundred fifteen thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 3046969 6093938 12187876 15234845 24375752 30469690 48751504 60939380 97503008 121878760 243757520 487515040