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288990798 = 23192535007
BaseRepresentation
bin10001001110011…
…010011001001110
3202010210020211220
4101032122121032
51042440201143
644402024210
710106244525
oct2116323116
9663706756
10288990798
11139145078
1280948066
1347b44a95
142a5494bc
151a586d83
hex1139a64e

288990798 has 16 divisors (see below), whose sum is σ = 608401920. Its totient is φ = 91260216.

The previous prime is 288990781. The next prime is 288990853. The reversal of 288990798 is 897099882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267390 + ... + 1267617.

It is an arithmetic number, because the mean of its divisors is an integer number (38025120).

Almost surely, 2288990798 is an apocalyptic number.

288990798 is an abundant number, since it is smaller than the sum of its proper divisors (319411122).

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

288990798 is a wasteful number, since it uses less digits than its factorization.

288990798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535031.

The product of its (nonzero) digits is 5225472, while the sum is 60.

The square root of 288990798 is about 16999.7293507867. The cubic root of 288990798 is about 661.1418845946.

The spelling of 288990798 in words is "two hundred eighty-eight million, nine hundred ninety thousand, seven hundred ninety-eight".

Divisors: 1 2 3 6 19 38 57 114 2535007 5070014 7605021 15210042 48165133 96330266 144495399 288990798