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15125145400 = 235275625727
BaseRepresentation
bin11100001011000011…
…10110011100111000
31110001002121222220101
432011201312130320
5221434014123100
610540504205144
71043546420551
oct160541663470
943032558811
1015125145400
116461828672
122b214697b4
131570754ca1
14a36abd328
155d7cd486a
hex385876738

15125145400 has 24 divisors (see below), whose sum is σ = 35165963520. Its totient is φ = 6050058080.

The previous prime is 15125145323. The next prime is 15125145421. The reversal of 15125145400 is 454152151.

15125145400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×151251454002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37812664 + ... + 37813063.

It is an arithmetic number, because the mean of its divisors is an integer number (1465248480).

Almost surely, 215125145400 is an apocalyptic number.

15125145400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15125145400 is an abundant number, since it is smaller than the sum of its proper divisors (20040818120).

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

15125145400 is a wasteful number, since it uses less digits than its factorization.

15125145400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75625743 (or 75625734 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 15125145400 its reverse (454152151), we get a palindrome (15579297551).

The spelling of 15125145400 in words is "fifteen billion, one hundred twenty-five million, one hundred forty-five thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 75625727 151251454 302502908 378128635 605005816 756257270 1512514540 1890643175 3025029080 3781286350 7562572700 15125145400