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487023898 = 21132154973
BaseRepresentation
bin11101000001110…
…110010100011010
31020221102101012011
4131001312110122
51444134231043
6120154340134
715032430514
oct3501662432
91227371164
10487023898
1122aa04299
1211712a64a
1379b90a2a
1448978bb4
152cb5359d
hex1d07651a

487023898 has 8 divisors (see below), whose sum is σ = 737001108. Its totient is φ = 241356864.

The previous prime is 487023851. The next prime is 487023899. The reversal of 487023898 is 898320784.

It can be written as a sum of positive squares in 2 ways, for example, as 466257649 + 20766249 = 21593^2 + 4557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4870238982 = 474384554446228808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (487023899) 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, 1077261 + ... + 1077712.

Almost surely, 2487023898 is an apocalyptic number.

487023898 is a deficient number, since it is larger than the sum of its proper divisors (249977210).

487023898 is a wasteful number, since it uses less digits than its factorization.

487023898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155088.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 487023898 is about 22068.6179449462. The cubic root of 487023898 is about 786.7741651031.

The spelling of 487023898 in words is "four hundred eighty-seven million, twenty-three thousand, eight hundred ninety-eight".

Divisors: 1 2 113 226 2154973 4309946 243511949 487023898