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6709378401 = 32111911633067
BaseRepresentation
bin1100011111110100…
…01111110101100001
3122022120212201220100
412033322033311201
5102220100102101
63025433133013
7325156526655
oct61772176541
918276781810
106709378401
1129332a6330
121372b5a169
1382c03cabb
14479108a65
1529405de86
hex18fe8fd61

6709378401 has 48 divisors (see below), whose sum is σ = 11141994240. Its totient is φ = 3847707360.

The previous prime is 6709378393. The next prime is 6709378427. The reversal of 6709378401 is 1048739076.

It is not a de Polignac number, because 6709378401 - 23 = 6709378393 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6709378301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2186070 + ... + 2189136.

It is an arithmetic number, because the mean of its divisors is an integer number (232124880).

Almost surely, 26709378401 is an apocalyptic number.

It is an amenable number.

6709378401 is a deficient number, since it is larger than the sum of its proper divisors (4432615839).

6709378401 is a wasteful number, since it uses less digits than its factorization.

6709378401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4263 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 6709378401 is about 81910.7953874213. The cubic root of 6709378401 is about 1886.0828326467.

The spelling of 6709378401 in words is "six billion, seven hundred nine million, three hundred seventy-eight thousand, four hundred one".

Divisors: 1 3 9 11 19 33 57 99 171 209 627 1163 1881 3067 3489 9201 10467 12793 22097 27603 33737 38379 58273 66291 101211 115137 174819 198873 243067 303633 524457 641003 729201 1923009 2187603 3566921 5769027 10700763 32102289 39236131 67771499 117708393 203314497 353125179 609943491 745486489 2236459467 6709378401