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2528005253 = 18891338277
BaseRepresentation
bin1001011010101110…
…0100110010000101
320112011212222021012
42112223210302011
520134132132003
61054503532005
7116434455464
oct22653446205
96464788235
102528005253
111087aa1844
125a675a005
133139864c7
1419da609db
15ebe0d8d8
hex96ae4c85

2528005253 has 4 divisors (see below), whose sum is σ = 2529345420. Its totient is φ = 2526665088.

The previous prime is 2528005243. The next prime is 2528005283. The reversal of 2528005253 is 3525008252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2005517089 + 522488164 = 44783^2 + 22858^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528005253 - 24 = 2528005237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528005243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667250 + ... + 671027.

It is an arithmetic number, because the mean of its divisors is an integer number (632336355).

Almost surely, 22528005253 is an apocalyptic number.

It is an amenable number.

2528005253 is a deficient number, since it is larger than the sum of its proper divisors (1340167).

2528005253 is a wasteful number, since it uses less digits than its factorization.

2528005253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340166.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2528005253 is about 50279.2725981592. The cubic root of 2528005253 is about 1362.2578650941.

Subtracting 2528005253 from its reverse (3525008252), we obtain a cube (997002999 = 9993).

The spelling of 2528005253 in words is "two billion, five hundred twenty-eight million, five thousand, two hundred fifty-three".

Divisors: 1 1889 1338277 2528005253