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6897904779052 = 227311836994651
BaseRepresentation
bin110010001100000101100…
…1010011111111100101100
3220102102200211210101022201
41210120023022133330230
51401003402110412202
622400504222351244
71311233340130630
oct144301312377454
926372624711281
106897904779052
11221a426468791
12934a3a42b524
133b0614a123a1
1419bc08c10dc0
15be66c593387
hex6460b29ff2c

6897904779052 has 48 divisors (see below), whose sum is σ = 13841969057280. Its totient is φ = 2946356064000.

The previous prime is 6897904779049. The next prime is 6897904779061. The reversal of 6897904779052 is 2509774097986.

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, 72829927 + ... + 72924577.

It is an arithmetic number, because the mean of its divisors is an integer number (288374355360).

Almost surely, 26897904779052 is an apocalyptic number.

It is an amenable number.

6897904779052 is an abundant number, since it is smaller than the sum of its proper divisors (6944064278228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6897904779052 is a wasteful number, since it uses less digits than its factorization.

6897904779052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103342 (or 103340 counting only the distinct ones).

The product of its (nonzero) digits is 480090240, while the sum is 73.

The spelling of 6897904779052 in words is "six trillion, eight hundred ninety-seven billion, nine hundred four million, seven hundred seventy-nine thousand, fifty-two".

Divisors: 1 2 4 7 14 28 311 622 1244 2177 4354 8369 8708 16738 33476 58583 94651 117166 189302 234332 378604 662557 1325114 2602759 2650228 5205518 10411036 18219313 29436461 36438626 58872922 72877252 117745844 206055227 412110454 792134219 824220908 1584268438 3168536876 5544939533 11089879066 22179758132 246353742109 492707484218 985414968436 1724476194763 3448952389526 6897904779052