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13215000327 = 3193743145721
BaseRepresentation
bin11000100111010110…
…01110011100000111
31021002222100120110120
430103223032130013
5204031020002302
610023151153023
7645323435514
oct142353163407
937088316416
1013215000327
115671583381
122689815773
131327aab829
148d513430b
155252709bc
hex313ace707

13215000327 has 32 divisors (see below), whose sum is σ = 19491774720. Its totient is φ = 7931831040.

The previous prime is 13215000319. The next prime is 13215000329. The reversal of 13215000327 is 72300051231.

It is not a de Polignac number, because 13215000327 - 23 = 13215000319 is a prime.

It is a super-2 number, since 2×132150003272 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13215000297 and 13215000306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215000329) 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, 17827 + ... + 163547.

It is an arithmetic number, because the mean of its divisors is an integer number (609117960).

Almost surely, 213215000327 is an apocalyptic number.

13215000327 is a deficient number, since it is larger than the sum of its proper divisors (6276774393).

13215000327 is a wasteful number, since it uses less digits than its factorization.

13215000327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145823.

The product of its (nonzero) digits is 1260, while the sum is 24.

Adding to 13215000327 its reverse (72300051231), we get a palindrome (85515051558).

The spelling of 13215000327 in words is "thirteen billion, two hundred fifteen million, three hundred twenty-seven", and thus it is an aban number.

Divisors: 1 3 19 37 43 57 111 129 703 817 1591 2109 2451 4773 30229 90687 145721 437163 2768699 5391677 6266003 8306097 16175031 18798009 102441863 119054057 231842111 307325589 357162171 695526333 4405000109 13215000327