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481940687 = 6171223499
BaseRepresentation
bin11100101110011…
…101010011001111
31020120212010100002
4130232131103033
51441334100222
6115453354515
714641266614
oct3456352317
91216763302
10481940687
11228052198
12115498a3b
1378b01107
144801450b
152c49c392
hex1cb9d4cf

481940687 has 16 divisors (see below), whose sum is σ = 499968000. Its totient is φ = 464335200.

The previous prime is 481940639. The next prime is 481940737. The reversal of 481940687 is 786049184.

It is a cyclic number.

It is not a de Polignac number, because 481940687 - 216 = 481875151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481940617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965564 + ... + 966062.

It is an arithmetic number, because the mean of its divisors is an integer number (31248000).

Almost surely, 2481940687 is an apocalyptic number.

481940687 is a deficient number, since it is larger than the sum of its proper divisors (18027313).

481940687 is a wasteful number, since it uses less digits than its factorization.

481940687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 481940687 is about 21953.1475419813. The cubic root of 481940687 is about 784.0273221901.

The spelling of 481940687 in words is "four hundred eighty-one million, nine hundred forty thousand, six hundred eighty-seven".

Divisors: 1 61 71 223 499 4331 13603 15833 30439 35429 111277 965813 2161169 6787897 7900667 481940687