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6961128853 = 710719946703
BaseRepresentation
bin1100111101110101…
…00110010110010101
3122222010120222121011
412132322212112111
5103224022110403
63110425052221
7334334422210
oct63672462625
918863528534
106961128853
112a52415158
121423327071
1386c246173
144a071c777
152ab1dba6d
hex19eea6595

6961128853 has 16 divisors (see below), whose sum is σ = 8070451200. Its totient is φ = 5881089456.

The previous prime is 6961128851. The next prime is 6961128869. The reversal of 6961128853 is 3588211696.

It is a cyclic number.

It is not a de Polignac number, because 6961128853 - 21 = 6961128851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6961128797 and 6961128806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6961128851) 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, 125700 + ... + 172402.

It is an arithmetic number, because the mean of its divisors is an integer number (504403200).

Almost surely, 26961128853 is an apocalyptic number.

It is an amenable number.

6961128853 is a deficient number, since it is larger than the sum of its proper divisors (1109322347).

6961128853 is a wasteful number, since it uses less digits than its factorization.

6961128853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47016.

The product of its digits is 622080, while the sum is 49.

The square root of 6961128853 is about 83433.3797289790. The cubic root of 6961128853 is about 1909.3837593315.

The spelling of 6961128853 in words is "six billion, nine hundred sixty-one million, one hundred twenty-eight thousand, eight hundred fifty-three".

Divisors: 1 7 107 199 749 1393 21293 46703 149051 326921 4997221 9293897 34980547 65057279 994446979 6961128853