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488478492 = 22334522949
BaseRepresentation
bin11101000111011…
…001011100011100
31021001011021112000
4131013121130130
52000022302432
6120245442300
715050666355
oct3507313434
91231137460
10488478492
11230808137
12117710390
137a27cb38
1448c36d2c
152cd3e57c
hex1d1d971c

488478492 has 24 divisors (see below), whose sum is σ = 1266426000. Its totient is φ = 162826128.

The previous prime is 488478491. The next prime is 488478503. The reversal of 488478492 is 294874884.

488478492 is a `hidden beast` number, since 4 + 8 + 84 + 78 + 492 = 666.

It is a super-2 number, since 2×4884784922 = 477222474293188128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488478491) 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, 2261367 + ... + 2261582.

It is an arithmetic number, because the mean of its divisors is an integer number (52767750).

Almost surely, 2488478492 is an apocalyptic number.

It is an amenable number.

488478492 is an abundant number, since it is smaller than the sum of its proper divisors (777947508).

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

488478492 is a wasteful number, since it uses less digits than its factorization.

488478492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522962 (or 4522954 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 488478492 is about 22101.5495384373. The cubic root of 488478492 is about 787.5566725654.

The spelling of 488478492 in words is "four hundred eighty-eight million, four hundred seventy-eight thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 4522949 9045898 13568847 18091796 27137694 40706541 54275388 81413082 122119623 162826164 244239246 488478492