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1230213512255 = 57132297171793
BaseRepresentation
bin10001111001101110011…
…100000111110000111111
311100121101200202120002212
4101321232130013300333
5130123434124343010
62341052521011035
7154610560214420
oct21715634076077
94317350676085
101230213512255
11434804502032
1217a510023a7b
138c015c88500
1443785071647
152200243c505
hex11e6e707c3f

1230213512255 has 48 divisors (see below), whose sum is σ = 1889911154880. Its totient is φ = 751833298944.

The previous prime is 1230213512239. The next prime is 1230213512273. The reversal of 1230213512255 is 5522153120321.

It is not a de Polignac number, because 1230213512255 - 24 = 1230213512239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3414362 + ... + 3757431.

It is an arithmetic number, because the mean of its divisors is an integer number (39373149060).

Almost surely, 21230213512255 is an apocalyptic number.

1230213512255 is a deficient number, since it is larger than the sum of its proper divisors (659697642625).

1230213512255 is a wasteful number, since it uses less digits than its factorization.

1230213512255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7171860 (or 7171847 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 1230213512255 its reverse (5522153120321), we get a palindrome (6752366632576).

The spelling of 1230213512255 in words is "one trillion, two hundred thirty billion, two hundred thirteen million, five hundred twelve thousand, two hundred fifty-five".

Divisors: 1 5 7 13 29 35 65 91 145 169 203 377 455 845 1015 1183 1885 2639 4901 5915 13195 24505 34307 171535 7171793 35858965 50202551 93233309 207981997 251012755 466166545 652633163 1039909985 1212033017 1455873979 2703765961 3263165815 6060165085 7279369895 8484231119 13518829805 18926361727 35148957493 42421155595 94631808635 175744787465 246042702451 1230213512255