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481879988 = 22120469997
BaseRepresentation
bin11100101110001…
…110011110110100
31020120202001001222
4130232032132310
51441330124423
6115452205512
714640624632
oct3456163664
91216661058
10481879988
11228010627
12115469898
1378aac5b5
1447dda352
152c4893c8
hex1cb8e7b4

481879988 has 6 divisors (see below), whose sum is σ = 843289986. Its totient is φ = 240939992.

The previous prime is 481879987. The next prime is 481879991. The reversal of 481879988 is 889978184.

It can be written as a sum of positive squares in only one way, i.e., 458473744 + 23406244 = 21412^2 + 4838^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 481879988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481879987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60234995 + ... + 60235002.

It is an arithmetic number, because the mean of its divisors is an integer number (140548331).

Almost surely, 2481879988 is an apocalyptic number.

It is an amenable number.

481879988 is a deficient number, since it is larger than the sum of its proper divisors (361409998).

481879988 is a wasteful number, since it uses less digits than its factorization.

481879988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120470001 (or 120469999 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 62.

The square root of 481879988 is about 21951.7650315413. The cubic root of 481879988 is about 783.9944055029.

The spelling of 481879988 in words is "four hundred eighty-one million, eight hundred seventy-nine thousand, nine hundred eighty-eight".

Divisors: 1 2 4 120469997 240939994 481879988