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12525128400248 = 233150504550001
BaseRepresentation
bin1011011001000011101111…
…0101000011110101111000
31122100101112201210210212122
42312100323311003311320
53120202430332301443
642345544202100412
72431624233532112
oct266207365036570
948311481723778
1012525128400248
113a999714a8332
1214a35541aa708
136cb16484c439
143143102503b2
1516ac19b3a968
hexb643bd43d78

12525128400248 has 16 divisors (see below), whose sum is σ = 24242184000960. Its totient is φ = 6060546000000.

The previous prime is 12525128400247. The next prime is 12525128400259. The reversal of 12525128400248 is 84200482152521.

It is a junction number, because it is equal to n+sod(n) for n = 12525128400199 and 12525128400208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525128400247) 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, 25252274753 + ... + 25252275248.

It is an arithmetic number, because the mean of its divisors is an integer number (1515136500060).

Almost surely, 212525128400248 is an apocalyptic number.

It is an amenable number.

12525128400248 is a deficient number, since it is larger than the sum of its proper divisors (11717055600712).

12525128400248 is a wasteful number, since it uses less digits than its factorization.

12525128400248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50504550038 (or 50504550034 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 44.

The spelling of 12525128400248 in words is "twelve trillion, five hundred twenty-five billion, one hundred twenty-eight million, four hundred thousand, two hundred forty-eight".

Divisors: 1 2 4 8 31 62 124 248 50504550001 101009100002 202018200004 404036400008 1565641050031 3131282100062 6262564200124 12525128400248