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3918989088 = 253373783211
BaseRepresentation
bin1110100110010111…
…0000011100100000
3101010010021021101000
43221211300130200
531011230122323
61444513312000
7166054600110
oct35145603440
911103237330
103918989088
111731192563
12914565600
134a5bc9171
142926a7040
1517e0c1e43
hexe9970720

3918989088 has 384 divisors, whose sum is σ = 13642352640. Its totient is φ = 1071221760.

The previous prime is 3918989069. The next prime is 3918989089. The reversal of 3918989088 is 8809898193.

3918989088 is a `hidden beast` number, since 391 + 89 + 8 + 90 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (3918989089) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18573303 + ... + 18573513.

It is an arithmetic number, because the mean of its divisors is an integer number (35526960).

Almost surely, 23918989088 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 3918989088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6821176320).

3918989088 is an abundant number, since it is smaller than the sum of its proper divisors (9723363552).

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

3918989088 is a wasteful number, since it uses less digits than its factorization.

3918989088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The square root of 3918989088 is about 62601.8297496167. The cubic root of 3918989088 is about 1576.6114807898.

The spelling of 3918989088 in words is "three billion, nine hundred eighteen million, nine hundred eighty-nine thousand, eighty-eight".