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188425013842 = 21318233975379
BaseRepresentation
bin1010111101111100000…
…0011000101001010010
3200000100122220110112101
42233133000120221102
511041343300420332
6222321121551014
716420230122452
oct2573700305122
9600318813471
10188425013842
1172a0200a83a
12306271a546a
13149cb246540
149196ad9d62
154d7c1a8ae7
hex2bdf018a52

188425013842 has 16 divisors (see below), whose sum is σ = 304545911040. Its totient is φ = 86917664592.

The previous prime is 188425013807. The next prime is 188425013849. The reversal of 188425013842 is 248310524881.

It is a junction number, because it is equal to n+sod(n) for n = 188425013792 and 188425013801.

It is not an unprimeable number, because it can be changed into a prime (188425013849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1940292 + ... + 2035087.

It is an arithmetic number, because the mean of its divisors is an integer number (19034119440).

Almost surely, 2188425013842 is an apocalyptic number.

188425013842 is a deficient number, since it is larger than the sum of its proper divisors (116120897198).

188425013842 is a wasteful number, since it uses less digits than its factorization.

188425013842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977217.

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 188425013842 in words is "one hundred eighty-eight billion, four hundred twenty-five million, thirteen thousand, eight hundred forty-two".

Divisors: 1 2 13 26 1823 3646 23699 47398 3975379 7950758 51679927 103359854 7247115917 14494231834 94212506921 188425013842