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215525050030 = 25112934695503
BaseRepresentation
bin1100100010111001001…
…0110100011010101110
3202121022022101221102101
43020232102310122232
512012343403100110
6243002201445314
721366624461353
oct3105622643256
9677268357371
10215525050030
11834492aa064
123592aaa083a
1317429881204
14a607d3c62a
1559163ee13a
hex322e4b46ae

215525050030 has 32 divisors (see below), whose sum is σ = 388471219200. Its totient is φ = 86093183232.

The previous prime is 215525050007. The next prime is 215525050031. The reversal of 215525050030 is 30050525512.

215525050030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215525050031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39162259 + ... + 39167761.

It is an arithmetic number, because the mean of its divisors is an integer number (12139725600).

Almost surely, 2215525050030 is an apocalyptic number.

215525050030 is a deficient number, since it is larger than the sum of its proper divisors (172946169170).

215525050030 is a wasteful number, since it uses less digits than its factorization.

215525050030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10108.

The product of its (nonzero) digits is 7500, while the sum is 28.

Adding to 215525050030 its reverse (30050525512), we get a palindrome (245575575542).

The spelling of 215525050030 in words is "two hundred fifteen billion, five hundred twenty-five million, fifty thousand, thirty".

Divisors: 1 2 5 10 1129 2258 3469 5503 5645 6938 11006 11290 17345 27515 34690 55030 3916501 6212887 7833002 12425774 19089907 19582505 31064435 38179814 39165010 62128870 95449535 190899070 21552505003 43105010006 107762525015 215525050030