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245404152 = 23327319523
BaseRepresentation
bin11101010000010…
…01000111111000
3122002202211012200
432220021013320
51000310413102
640203510200
76036621000
oct1650110770
9562684180
10245404152
11116584854
126a228360
133bac3876
1424841000
151682751c
hexea091f8

245404152 has 192 divisors, whose sum is σ = 817440000. Its totient is φ = 66298176.

The previous prime is 245404123. The next prime is 245404157. The reversal of 245404152 is 251404542.

245404152 is a `hidden beast` number, since 245 + 4 + 0 + 415 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245404157) 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 47 ways as a sum of consecutive naturals, for example, 468963 + ... + 469485.

It is an arithmetic number, because the mean of its divisors is an integer number (4257500).

Almost surely, 2245404152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245404152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408720000).

245404152 is an abundant number, since it is smaller than the sum of its proper divisors (572035848).

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

245404152 is a wasteful number, since it uses less digits than its factorization.

245404152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 245404152 is about 15665.3806848094. The cubic root of 245404152 is about 626.0763549785.

Adding to 245404152 its reverse (251404542), we get a palindrome (496808694).

The spelling of 245404152 in words is "two hundred forty-five million, four hundred four thousand, one hundred fifty-two".