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288401252 = 22127567719
BaseRepresentation
bin10001001100001…
…010011101100100
3202002200022010212
4101030022131210
51042312320002
644341234552
710101240656
oct2114123544
9662608125
10288401252
11138882147
1280702a58
1347999639
142a4346d6
151a4bc352
hex1130a764

288401252 has 12 divisors (see below), whose sum is σ = 508677120. Its totient is φ = 143064936.

The previous prime is 288401227. The next prime is 288401261. The reversal of 288401252 is 252104882.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283352 + ... + 284367.

It is an arithmetic number, because the mean of its divisors is an integer number (42389760).

Almost surely, 2288401252 is an apocalyptic number.

It is an amenable number.

288401252 is a deficient number, since it is larger than the sum of its proper divisors (220275868).

288401252 is a wasteful number, since it uses less digits than its factorization.

288401252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567850 (or 567848 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 288401252 is about 16982.3806340572. The cubic root of 288401252 is about 660.6919984101.

The spelling of 288401252 in words is "two hundred eighty-eight million, four hundred one thousand, two hundred fifty-two".

Divisors: 1 2 4 127 254 508 567719 1135438 2270876 72100313 144200626 288401252