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1688483432052 = 223246902317557
BaseRepresentation
bin11000100100100001011…
…101001000011001110100
312222102021022110112222100
4120210201131020121310
5210131003224311202
63331402323502100
7232663123236504
oct30444135103164
95872238415870
101688483432052
115a109997363a
122332a5827930
13c32b97a4b21
145ba1a011a04
152ddc474241c
hex18921748674

1688483432052 has 18 divisors (see below), whose sum is σ = 4268110897778. Its totient is φ = 562827810672.

The previous prime is 1688483432021. The next prime is 1688483432071. The reversal of 1688483432052 is 2502343848861.

1688483432052 is a `hidden beast` number, since 1 + 6 + 8 + 84 + 83 + 432 + 0 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1233352398096 + 455131033956 = 1110564^2 + 674634^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1688483432052.

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 5 ways as a sum of consecutive naturals, for example, 23451158743 + ... + 23451158814.

Almost surely, 21688483432052 is an apocalyptic number.

1688483432052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1688483432052 is an abundant number, since it is smaller than the sum of its proper divisors (2579627465726).

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

1688483432052 is a wasteful number, since it uses less digits than its factorization.

1688483432052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46902317567 (or 46902317562 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 1688483432052 in words is "one trillion, six hundred eighty-eight billion, four hundred eighty-three million, four hundred thirty-two thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 46902317557 93804635114 140706952671 187609270228 281413905342 422120858013 562827810684 844241716026 1688483432052