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245130452 = 22761143519
BaseRepresentation
bin11101001110001…
…10010011010100
3122002020220202122
432213012103110
51000223133302
640153555112
76034401020
oct1647062324
9562226678
10245130452
11116408156
126a115a98
133ba29108
14247ad380
15167c13a2
hexe9c64d4

245130452 has 24 divisors (see below), whose sum is σ = 498301440. Its totient is φ = 103332960.

The previous prime is 245130451. The next prime is 245130461. The reversal of 245130452 is 254031542.

It is a happy number.

245130452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245130451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70052 + ... + 73467.

It is an arithmetic number, because the mean of its divisors is an integer number (20762560).

Almost surely, 2245130452 is an apocalyptic number.

It is an amenable number.

245130452 is an abundant number, since it is smaller than the sum of its proper divisors (253170988).

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

245130452 is a wasteful number, since it uses less digits than its factorization.

245130452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143591 (or 143589 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 245130452 is about 15656.6424242237. The cubic root of 245130452 is about 625.8435134373.

Adding to 245130452 its reverse (254031542), we get a palindrome (499161994).

The spelling of 245130452 in words is "two hundred forty-five million, one hundred thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1708 143519 287038 574076 1004633 2009266 4018532 8754659 17509318 35018636 61282613 122565226 245130452