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481023990 = 23255344711
BaseRepresentation
bin11100101010111…
…101011111110110
31020112010112212100
4130222331133312
51441120231430
6115422002530
714630431206
oct3452753766
91215115770
10481023990
11227586497
12115116446
137886caa5
1447c56406
152c36a960
hex1cabd7f6

481023990 has 24 divisors (see below), whose sum is σ = 1250662608. Its totient is φ = 128273040.

The previous prime is 481023989. The next prime is 481023997. The reversal of 481023990 is 99320184.

It is a super-3 number, since 3×4810239903 (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481023997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2672266 + ... + 2672445.

It is an arithmetic number, because the mean of its divisors is an integer number (52110942).

Almost surely, 2481023990 is an apocalyptic number.

481023990 is an abundant number, since it is smaller than the sum of its proper divisors (769638618).

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

481023990 is a wasteful number, since it uses less digits than its factorization.

481023990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344724 (or 5344721 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 481023990 is about 21932.2591175647. The cubic root of 481023990 is about 783.5299085151.

The spelling of 481023990 in words is "four hundred eighty-one million, twenty-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 5344711 10689422 16034133 26723555 32068266 48102399 53447110 80170665 96204798 160341330 240511995 481023990