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212515752215201 = 380938355787447
BaseRepresentation
bin110000010100100000101101…
…111010111000001010100001
31000212110022022011111022120012
4300110200231322320022201
5210323324230031341301
62031552215551254305
762522520310662311
oct6024405572701241
91025408264438505
10212515752215201
1161794473940016
121ba02b8751a395
1391771c3437416
143a69b628d7441
151988050990ebb
hexc1482deb82a1

212515752215201 has 4 divisors (see below), whose sum is σ = 212515811812032. Its totient is φ = 212515692618372.

The previous prime is 212515752215159. The next prime is 212515752215233. The reversal of 212515752215201 is 102512257515212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212515752215201 - 210 = 212515752214177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212515752215251) 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, 24084341 + ... + 31703106.

It is an arithmetic number, because the mean of its divisors is an integer number (53128952953008).

Almost surely, 2212515752215201 is an apocalyptic number.

It is an amenable number.

212515752215201 is a deficient number, since it is larger than the sum of its proper divisors (59596831).

212515752215201 is an equidigital number, since it uses as much as digits as its factorization.

212515752215201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59596830.

The product of its (nonzero) digits is 140000, while the sum is 41.

The spelling of 212515752215201 in words is "two hundred twelve trillion, five hundred fifteen billion, seven hundred fifty-two million, two hundred fifteen thousand, two hundred one".

Divisors: 1 3809383 55787447 212515752215201