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20069697052 = 2223218148881
BaseRepresentation
bin10010101100001111…
…110100011000011100
31220210200200020122001
4102230033310120130
5312100320301202
613115255132044
71310226416206
oct225417643034
956720606561
1020069697052
118569903499
123a81374024
131b7ac6b5b2
14d85669776
157c6e36d87
hex4ac3f461c

20069697052 has 12 divisors (see below), whose sum is σ = 36649012176. Its totient is φ = 9598550720.

The previous prime is 20069697031. The next prime is 20069697077. The reversal of 20069697052 is 25079696002.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 20069696993 and 20069697011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109074349 + ... + 109074532.

It is an arithmetic number, because the mean of its divisors is an integer number (3054084348).

Almost surely, 220069697052 is an apocalyptic number.

It is an amenable number.

20069697052 is a deficient number, since it is larger than the sum of its proper divisors (16579315124).

20069697052 is a wasteful number, since it uses less digits than its factorization.

20069697052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218148908 (or 218148906 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 20069697052 in words is "twenty billion, sixty-nine million, six hundred ninety-seven thousand, fifty-two".

Divisors: 1 2 4 23 46 92 218148881 436297762 872595524 5017424263 10034848526 20069697052