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6695042400485 = 537412016143781
BaseRepresentation
bin110000101101100111110…
…0111111100000011100101
3212201001002000102210121022
41201123033213330003211
51334142421323303420
622123354321500525
71260462251303615
oct141331747740345
925631060383538
106695042400485
11215139599416a
129016641a1745
133974556954aa
1419208290ca45
15b9247bb1c25
hex616cf9fc0e5

6695042400485 has 32 divisors (see below), whose sum is σ = 8453048181984. Its totient is φ = 5083803648000.

The previous prime is 6695042400467. The next prime is 6695042400509. The reversal of 6695042400485 is 5840042405966.

It is a happy number.

It is a Cunningham number, because it is equal to 25874782+1.

It can be written as a sum of positive squares in 16 ways, for example, as 61028267521 + 6634014132964 = 247039^2 + 2575658^2 .

It is not a de Polignac number, because 6695042400485 - 238 = 6420164493541 is a prime.

It is a super-2 number, since 2×66950424004852 (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152899295 + ... + 152943075.

It is an arithmetic number, because the mean of its divisors is an integer number (264157755687).

Almost surely, 26695042400485 is an apocalyptic number.

It is an amenable number.

6695042400485 is a deficient number, since it is larger than the sum of its proper divisors (1758005781499).

6695042400485 is a wasteful number, since it uses less digits than its factorization.

6695042400485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64025.

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 6695042400485 in words is "six trillion, six hundred ninety-five billion, forty-two million, four hundred thousand, four hundred eighty-five".

Divisors: 1 5 37 41 185 205 1517 7585 20161 43781 100805 218905 745957 826601 1619897 1795021 3729785 4133005 8099485 8975105 30584237 66415777 152921185 332078885 882668741 4413343705 32658743417 36189418381 163293717085 180947091905 1339008480097 6695042400485