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188385026308 = 22200327778467
BaseRepresentation
bin1010111101110010011…
…1110110000100000100
3200000020212122212221121
42233130213312010010
511041303031320213
6222313132523324
716416233205643
oct2573447660404
9600225585847
10188385026308
1172991488596
1230615920544
13149c2b8558b
14919168b35a
154d7890a88d
hex2bdc9f6104

188385026308 has 24 divisors (see below), whose sum is σ = 329996130912. Its totient is φ = 94100470464.

The previous prime is 188385026279. The next prime is 188385026309. The reversal of 188385026308 is 803620583881.

188385026308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1883850263082 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (188385026309) 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 7 ways as a sum of consecutive naturals, for example, 22245091 + ... + 22253557.

It is an arithmetic number, because the mean of its divisors is an integer number (13749838788).

Almost surely, 2188385026308 is an apocalyptic number.

It is an amenable number.

188385026308 is a deficient number, since it is larger than the sum of its proper divisors (141611104604).

188385026308 is a wasteful number, since it uses less digits than its factorization.

188385026308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251 (or 13249 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 188385026308 in words is "one hundred eighty-eight billion, three hundred eighty-five million, twenty-six thousand, three hundred eight".

Divisors: 1 2 4 2003 2777 4006 5554 8012 8467 11108 16934 33868 5562331 11124662 16959401 22249324 23512859 33918802 47025718 67837604 94051436 47096256577 94192513154 188385026308