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6810144172 = 22131764311981
BaseRepresentation
bin1100101011110101…
…01000110110101100
3122120121111011112221
412111322220312230
5102421344103142
63043433005124
7330522161506
oct62572506654
918517434487
106810144172
112985170127
1213a08537a4
13846b91010
14488658d76
1529cd15767
hex195ea8dac

6810144172 has 48 divisors (see below), whose sum is σ = 13611743712. Its totient is φ = 2953405440.

The previous prime is 6810144161. The next prime is 6810144193. The reversal of 6810144172 is 2714410186.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 562422 + ... + 574402.

It is an arithmetic number, because the mean of its divisors is an integer number (283577994).

Almost surely, 26810144172 is an apocalyptic number.

It is an amenable number.

6810144172 is a deficient number, since it is larger than the sum of its proper divisors (6801599540).

6810144172 is a wasteful number, since it uses less digits than its factorization.

6810144172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12658 (or 12656 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 6810144172 is about 82523.5976675763. The cubic root of 6810144172 is about 1895.4780898185.

The spelling of 6810144172 in words is "six billion, eight hundred ten million, one hundred forty-four thousand, one hundred seventy-two".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 643 884 1286 2572 8359 10931 11981 16718 21862 23962 33436 43724 47924 142103 155753 203677 284206 311506 407354 568412 623012 814708 2647801 5295602 7703783 10591204 15407566 30815132 100149179 130964311 200298358 261928622 400596716 523857244 1702536043 3405072086 6810144172