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4289825988 = 2233789103619
BaseRepresentation
bin1111111110110001…
…1000110011000100
3102001222001201222000
43333230120303010
532241143412423
61545401505300
7211206630210
oct37754306304
912058051860
104289825988
111901549838
129b87a2230
13534999696
142c9a39940
151a1924843
hexffb18cc4

4289825988 has 192 divisors, whose sum is σ = 12999168000. Its totient is φ = 1198188288.

The previous prime is 4289825977. The next prime is 4289825993. The reversal of 4289825988 is 8895289824.

4289825988 is a `hidden beast` number, since 428 + 9 + 82 + 59 + 88 = 666.

It is a super-2 number, since 2×42898259882 = 36805214014640352288, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6929943 + ... + 6930561.

It is an arithmetic number, because the mean of its divisors is an integer number (67704000).

Almost surely, 24289825988 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 4289825988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6499584000).

4289825988 is an abundant number, since it is smaller than the sum of its proper divisors (8709342012).

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

4289825988 is a wasteful number, since it uses less digits than its factorization.

4289825988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 823 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 63.

The square root of 4289825988 is about 65496.7631871988. The cubic root of 4289825988 is about 1624.8498149801.

It can be divided in two parts, 42898 and 25988, that added together give a palindrome (68886).

The spelling of 4289825988 in words is "four billion, two hundred eighty-nine million, eight hundred twenty-five thousand, nine hundred eighty-eight".