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215464328230 = 2581701263723
BaseRepresentation
bin1100100010101010101…
…1001011110000100110
3202121011002010221202211
43020222223023300212
512012232332000410
6242552152154034
721365256400024
oct3105253136046
9677132127684
10215464328230
1183417aa5958
123591269891a
131741a110858
14a5ddc53714
155910e0768a
hex322aacbc26

215464328230 has 16 divisors (see below), whose sum is σ = 387842008464. Its totient is φ = 86184349600.

The previous prime is 215464328203. The next prime is 215464328239. The reversal of 215464328230 is 32823464512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215464328239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685149 + ... + 948871.

It is an arithmetic number, because the mean of its divisors is an integer number (24240125529).

Almost surely, 2215464328230 is an apocalyptic number.

215464328230 is a deficient number, since it is larger than the sum of its proper divisors (172377680234).

215464328230 is a wasteful number, since it uses less digits than its factorization.

215464328230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345431.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 215464328230 in words is "two hundred fifteen billion, four hundred sixty-four million, three hundred twenty-eight thousand, two hundred thirty".

Divisors: 1 2 5 10 81701 163402 263723 408505 527446 817010 1318615 2637230 21546432823 43092865646 107732164115 215464328230