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215216580030 = 23523311908087
BaseRepresentation
bin1100100001101111101…
…0000110010110111110
3202120111210222001010120
43020123322012112332
512011230421030110
6242511422115410
721356160514044
oct3103372062676
9676453861116
10215216580030
118330016aa81
123586371bb66
13173aa9a909a
14a5b8da2394
1558e92ba870
hex321be865be

215216580030 has 32 divisors (see below), whose sum is σ = 538977176064. Its totient is φ = 54895823136.

The previous prime is 215216579993. The next prime is 215216580119. The reversal of 215216580030 is 30085612512.

215216580030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215216579973 and 215216580000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155953354 + ... + 155954733.

It is an arithmetic number, because the mean of its divisors is an integer number (16843036752).

Almost surely, 2215216580030 is an apocalyptic number.

215216580030 is an abundant number, since it is smaller than the sum of its proper divisors (323760596034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215216580030 is a wasteful number, since it uses less digits than its factorization.

215216580030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311908120.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 215216580030 in words is "two hundred fifteen billion, two hundred sixteen million, five hundred eighty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 311908087 623816174 935724261 1559540435 1871448522 3119080870 4678621305 7173886001 9357242610 14347772002 21521658003 35869430005 43043316006 71738860010 107608290015 215216580030