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481640832 = 27321572663
BaseRepresentation
bin11100101101010…
…100000110000000
31020120021220000100
4130231110012000
51441300001312
6115443122400
714635610451
oct3455240600
91216256010
10481640832
11227967982
12115373400
1378a2779a
1447d77128
152c43d5dc
hex1cb54180

481640832 has 96 divisors (see below), whose sum is σ = 1395323280. Its totient is φ = 159464448.

The previous prime is 481640779. The next prime is 481640833. The reversal of 481640832 is 238046184.

481640832 is a `hidden beast` number, since 4 + 8 + 1 + 640 + 8 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481640833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179533 + ... + 182195.

Almost surely, 2481640832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 481640832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697661640).

481640832 is an abundant number, since it is smaller than the sum of its proper divisors (913682448).

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

481640832 is a wasteful number, since it uses less digits than its factorization.

481640832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 481640832 is about 21946.3170486531. The cubic root of 481640832 is about 783.8646857958.

The spelling of 481640832 in words is "four hundred eighty-one million, six hundred forty thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 157 192 288 314 384 471 576 628 942 1152 1256 1413 1884 2512 2663 2826 3768 5024 5326 5652 7536 7989 10048 10652 11304 15072 15978 20096 21304 22608 23967 30144 31956 42608 45216 47934 60288 63912 85216 90432 95868 127824 170432 180864 191736 255648 340864 383472 418091 511296 766944 836182 1022592 1254273 1533888 1672364 2508546 3067776 3344728 3762819 5017092 6689456 7525638 10034184 13378912 15051276 20068368 26757824 30102552 40136736 53515648 60205104 80273472 120410208 160546944 240820416 481640832