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2089967880 = 233571113127137
BaseRepresentation
bin111110010010010…
…0110000100001000
312101122122100221210
41330210212010020
513240012433010
6543215133120
7102535301550
oct17444460410
95348570853
102089967880
11982806890
124a3b141a0
13273cb77b0
1415b7d8160
15c3734b20
hex7c926108

2089967880 has 512 divisors, whose sum is σ = 8546549760. Its totient is φ = 394813440.

The previous prime is 2089967839. The next prime is 2089967923. The reversal of 2089967880 is 887699802.

It is a self number, because there is not a number n which added to its sum of digits gives 2089967880.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15255172 + ... + 15255308.

It is an arithmetic number, because the mean of its divisors is an integer number (16692480).

Almost surely, 22089967880 is an apocalyptic number.

2089967880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2089967880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4273274880).

2089967880 is an abundant number, since it is smaller than the sum of its proper divisors (6456581880).

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

2089967880 is a wasteful number, since it uses less digits than its factorization.

2089967880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 2089967880 is about 45716.1665059528. The cubic root of 2089967880 is about 1278.5367148666.

It can be divided in two parts, 2089 and 967880, that added together give a palindrome (969969).

The spelling of 2089967880 in words is "two billion, eighty-nine million, nine hundred sixty-seven thousand, eight hundred eighty".