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481421240 = 23519633449
BaseRepresentation
bin11100101100011…
…110011110111000
31020112212201210022
4130230132132320
51441220434430
6115434310012
714634004316
oct3454363670
91215781708
10481421240
112278279a3
12115288308
137897b851
1447d1b0b6
152c3e84e5
hex1cb1e7b8

481421240 has 32 divisors (see below), whose sum is σ = 1140210000. Its totient is φ = 182433024.

The previous prime is 481421191. The next prime is 481421261. The reversal of 481421240 is 42124184.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 315965 + ... + 317484.

Almost surely, 2481421240 is an apocalyptic number.

481421240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

481421240 is an abundant number, since it is smaller than the sum of its proper divisors (658788760).

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

481421240 is a wasteful number, since it uses less digits than its factorization.

481421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633479 (or 633475 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 481421240 is about 21941.3135431769. The cubic root of 481421240 is about 783.7455399034.

The spelling of 481421240 in words is "four hundred eighty-one million, four hundred twenty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 633449 1266898 2533796 3167245 5067592 6334490 12035531 12668980 24071062 25337960 48142124 60177655 96284248 120355310 240710620 481421240