Search a number
-
+
4289486988 = 22317311374951
BaseRepresentation
bin1111111110101100…
…0110000010001100
3102001221102111221110
43333223012002030
532241102040423
61545350332020
7211204015653
oct37753060214
912057374843
104289486988
111901338076
129b865a010
135348ab2a7
142c998c19a
151a18a9193
hexffac608c

4289486988 has 96 divisors (see below), whose sum is σ = 11021488128. Its totient is φ = 1292544000.

The previous prime is 4289486983. The next prime is 4289487023. The reversal of 4289486988 is 8896849824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4289486983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 863913 + ... + 868863.

It is an arithmetic number, because the mean of its divisors is an integer number (114807168).

Almost surely, 24289486988 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 4289486988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5510744064).

4289486988 is an abundant number, since it is smaller than the sum of its proper divisors (6732001140).

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

4289486988 is a wasteful number, since it uses less digits than its factorization.

4289486988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143 (or 5141 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 66.

The square root of 4289486988 is about 65494.1752219234. The cubic root of 4289486988 is about 1624.8070130421.

The spelling of 4289486988 in words is "four billion, two hundred eighty-nine million, four hundred eighty-six thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 17 31 34 51 62 68 93 102 124 137 186 204 274 372 411 527 548 822 1054 1581 1644 2108 2329 3162 4247 4658 4951 6324 6987 8494 9316 9902 12741 13974 14853 16988 19804 25482 27948 29706 50964 59412 72199 84167 144398 153481 168334 216597 252501 288796 306962 336668 433194 460443 505002 613924 678287 866388 920886 1010004 1356574 1841772 2034861 2609177 2713148 4069722 5218354 7827531 8139444 10436708 11530879 15655062 21026897 23061758 31310124 34592637 42053794 46123516 63080691 69185274 84107588 126161382 138370548 252322764 357457249 714914498 1072371747 1429828996 2144743494 4289486988