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215352420234325 = 521161122910445647
BaseRepresentation
bin110000111101110010100100…
…100000100111010001010101
31001020111111020102211021112021
4300331302210200213101111
5211211313224034444300
62042003311443453141
763234461505212263
oct6075624440472125
91036444212737467
10215352420234325
11626884a2aa6030
12201a08a99871b1
1393218525cb89a
143b27181577433
1519d6c25e78d1a
hexc3dca4827455

215352420234325 has 48 divisors (see below), whose sum is σ = 296329663330560. Its totient is φ = 153927039456000.

The previous prime is 215352420234317. The next prime is 215352420234337. The reversal of 215352420234325 is 523432024253512.

It is not a de Polignac number, because 215352420234325 - 23 = 215352420234317 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, 15393652 + ... + 25839298.

It is an arithmetic number, because the mean of its divisors is an integer number (6173534652720).

Almost surely, 2215352420234325 is an apocalyptic number.

215352420234325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215352420234325 is a deficient number, since it is larger than the sum of its proper divisors (80977243096235).

215352420234325 is a wasteful number, since it uses less digits than its factorization.

215352420234325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10446958 (or 10446953 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 43.

Adding to 215352420234325 its reverse (523432024253512), we get a palindrome (738784444487837).

The spelling of 215352420234325 in words is "two hundred fifteen trillion, three hundred fifty-two billion, four hundred twenty million, two hundred thirty-four thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 61 275 305 671 1229 1525 3355 6145 13519 16775 30725 67595 74969 337975 374845 824659 1874225 4123295 10445647 20616475 52228235 114902117 261141175 574510585 637184467 2872552925 3185922335 7009029137 12837700163 15929611675 35045145685 64188500815 141214701793 175225728425 320942504075 706073508965 783099709943 3530367544825 3915498549715 8614096809373 19577492748575 43070484046865 215352420234325