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315212552055 = 33521431089551
BaseRepresentation
bin1001001011001000010…
…00011101011101110111
31010010121201000202001000
410211210020131131313
520131023403131210
6400450122534343
731526155325142
oct4454410353567
91103551022030
10315212552055
111117542a4875
12511100673b3
13239557082bb
1411383695059
1582eceabac0
hex496421d777

315212552055 has 32 divisors (see below), whose sum is σ = 560639877120. Its totient is φ = 168034759200.

The previous prime is 315212552051. The next prime is 315212552101. The reversal of 315212552055 is 550255212513.

315212552055 is a `hidden beast` number, since 3 + 1 + 5 + 2 + 125 + 520 + 5 + 5 = 666.

It is not a de Polignac number, because 315212552055 - 22 = 315212552051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315212552051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255471 + ... + 834080.

It is an arithmetic number, because the mean of its divisors is an integer number (17519996160).

Almost surely, 2315212552055 is an apocalyptic number.

315212552055 is a deficient number, since it is larger than the sum of its proper divisors (245427325065).

315212552055 is a wasteful number, since it uses less digits than its factorization.

315212552055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091708 (or 1091702 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

Adding to 315212552055 its reverse (550255212513), we get a palindrome (865467764568).

The spelling of 315212552055 in words is "three hundred fifteen billion, two hundred twelve million, five hundred fifty-two thousand, fifty-five".

Divisors: 1 3 5 9 15 27 45 135 2143 6429 10715 19287 32145 57861 96435 289305 1089551 3268653 5447755 9805959 16343265 29417877 49029795 147089385 2334907793 7004723379 11674538965 21014170137 35023616895 63042510411 105070850685 315212552055