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288507372 = 22324042281
BaseRepresentation
bin10001001100100…
…100010111101100
3202002212200201020
4101030210113230
51042324213442
644343414140
710102162236
oct2114442754
9662780636
10288507372
1113894494a
1280754350
1347a05a2a
142a461256
151a4dd9ec
hex113245ec

288507372 has 12 divisors (see below), whose sum is σ = 673183896. Its totient is φ = 96169120.

The previous prime is 288507371. The next prime is 288507379. The reversal of 288507372 is 273705882.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (288507371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12021129 + ... + 12021152.

It is an arithmetic number, because the mean of its divisors is an integer number (56098658).

Almost surely, 2288507372 is an apocalyptic number.

It is an amenable number.

288507372 is an abundant number, since it is smaller than the sum of its proper divisors (384676524).

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

288507372 is a wasteful number, since it uses less digits than its factorization.

288507372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24042288 (or 24042286 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 288507372 is about 16985.5047614135. The cubic root of 288507372 is about 660.7730244535.

The spelling of 288507372 in words is "two hundred eighty-eight million, five hundred seven thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 24042281 48084562 72126843 96169124 144253686 288507372