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1485421938 = 23271113194339
BaseRepresentation
bin101100010001001…
…1011110101110010
310211112002020211100
41120202123311302
511020232000223
6403221425230
751544610130
oct13042336562
93745066740
101485421938
116a2533540
1235556b216
131a89899c0
141013ca750
158a61a043
hex5889bd72

1485421938 has 192 divisors, whose sum is σ = 4549708800. Its totient is φ = 337322880.

The previous prime is 1485421909. The next prime is 1485421967. The reversal of 1485421938 is 8391245841.

1485421938 is a `hidden beast` number, since 14 + 8 + 542 + 1 + 93 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1485421909) and next prime (1485421967).

It is a junction number, because it is equal to n+sod(n) for n = 1485421893 and 1485421902.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 340173 + ... + 344511.

It is an arithmetic number, because the mean of its divisors is an integer number (23696400).

Almost surely, 21485421938 is an apocalyptic number.

1485421938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1485421938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274854400).

1485421938 is an abundant number, since it is smaller than the sum of its proper divisors (3064286862).

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

1485421938 is a wasteful number, since it uses less digits than its factorization.

1485421938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4397 (or 4394 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 1485421938 is about 38541.1719852939. The cubic root of 1485421938 is about 1140.9937825520.

The spelling of 1485421938 in words is "one billion, four hundred eighty-five million, four hundred twenty-one thousand, nine hundred thirty-eight".