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4989904140 = 22351322971239
BaseRepresentation
bin1001010010110101…
…11110010100001100
3110212202101101122110
410221122332110030
540204403413030
62143050544020
7234440325324
oct45132762414
913782341573
104989904140
112130741921
12b73138010
13616a35500
143549d4284
151e31101b0
hex1296be50c

4989904140 has 288 divisors, whose sum is σ = 15937689600. Its totient is φ = 1164334080.

The previous prime is 4989904121. The next prime is 4989904147. The reversal of 4989904140 is 414099894.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4989904140.

It is not an unprimeable number, because it can be changed into a prime (4989904147) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20878141 + ... + 20878379.

It is an arithmetic number, because the mean of its divisors is an integer number (55339200).

Almost surely, 24989904140 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 4989904140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7968844800).

4989904140 is an abundant number, since it is smaller than the sum of its proper divisors (10947785460).

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

4989904140 is a wasteful number, since it uses less digits than its factorization.

4989904140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 4989904140 is about 70639.2535351273. The cubic root of 4989904140 is about 1708.8242593262.

The spelling of 4989904140 in words is "four billion, nine hundred eighty-nine million, nine hundred four thousand, one hundred forty".