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12125455451270 = 257173220792161
BaseRepresentation
bin1011000001110010110101…
…1101110000010010000110
31120221011220211122100112122
42300130231131300102012
53042130413043420040
641442205103445542
72361015042524450
oct260345535602206
946834824570478
1012125455451270
113955416546237
121439bb25b68b2
1369c56bbc0815
142dcc376a32d0
15160626ce61b5
hexb072d770486

12125455451270 has 16 divisors (see below), whose sum is σ = 24943794071328. Its totient is φ = 4157299011840.

The previous prime is 12125455451267. The next prime is 12125455451299. The reversal of 12125455451270 is 7215455452121.

It is a super-2 number, since 2×121254554512702 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86610396011 + ... + 86610396150.

It is an arithmetic number, because the mean of its divisors is an integer number (1558987129458).

Almost surely, 212125455451270 is an apocalyptic number.

12125455451270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12125455451270 is an abundant number, since it is smaller than the sum of its proper divisors (12818338620058).

12125455451270 is a wasteful number, since it uses less digits than its factorization.

12125455451270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173220792175.

The product of its (nonzero) digits is 560000, while the sum is 44.

The spelling of 12125455451270 in words is "twelve trillion, one hundred twenty-five billion, four hundred fifty-five million, four hundred fifty-one thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 173220792161 346441584322 866103960805 1212545545127 1732207921610 2425091090254 6062727725635 12125455451270