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69713849940399 = 347122952116297
BaseRepresentation
bin11111101100111100001010…
…10000101111100110101111
3100010211120122001210121120000
433312132011100233212233
533114142431041043044
6404134033414355343
720453442122200350
oct1766360520574657
9303746561717500
1069713849940399
1120238528945065
12799b01735bb53
132cb8cac396c02
14133024dcd7d27
1580d63d1c7d69
hex3f678542f9af

69713849940399 has 20 divisors (see below), whose sum is σ = 119017648576464. Its totient is φ = 39836485679904.

The previous prime is 69713849940311. The next prime is 69713849940421. The reversal of 69713849940399 is 99304994831796.

69713849940399 is a `hidden beast` number, since 6 + 9 + 7 + 1 + 38 + 4 + 99 + 403 + 99 = 666.

It is not a de Polignac number, because 69713849940399 - 220 = 69713848891823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69713849941399) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61476057582 + ... + 61476058715.

Almost surely, 269713849940399 is an apocalyptic number.

69713849940399 is a deficient number, since it is larger than the sum of its proper divisors (49303798636065).

69713849940399 is a wasteful number, since it uses less digits than its factorization.

69713849940399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122952116316 (or 122952116307 counting only the distinct ones).

The product of its (nonzero) digits is 2857026816, while the sum is 81.

The spelling of 69713849940399 in words is "sixty-nine trillion, seven hundred thirteen billion, eight hundred forty-nine million, nine hundred forty thousand, three hundred ninety-nine".

Divisors: 1 3 7 9 21 27 63 81 189 567 122952116297 368856348891 860664814079 1106569046673 2581994442237 3319707140019 7745983326711 9959121420057 23237949980133 69713849940399