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28455274542 = 2331152985347
BaseRepresentation
bin11010100000000100…
…010000100000101110
32201110002121201102010
4122200010100200232
5431234022241132
621023331142050
72025101562042
oct324004204056
981402551363
1028455274542
1111082295a22
125621744926
1328b6343476
14153d222022
15b181e76cc
hex6a011082e

28455274542 has 16 divisors (see below), whose sum is σ = 58746373632. Its totient is φ = 9179120760.

The previous prime is 28455274489. The next prime is 28455274591. The reversal of 28455274542 is 24547255482.

It is a junction number, because it is equal to n+sod(n) for n = 28455274491 and 28455274500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76492488 + ... + 76492859.

It is an arithmetic number, because the mean of its divisors is an integer number (3671648352).

Almost surely, 228455274542 is an apocalyptic number.

28455274542 is an abundant number, since it is smaller than the sum of its proper divisors (30291099090).

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

28455274542 is a wasteful number, since it uses less digits than its factorization.

28455274542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152985383.

The product of its digits is 3584000, while the sum is 48.

The spelling of 28455274542 in words is "twenty-eight billion, four hundred fifty-five million, two hundred seventy-four thousand, five hundred forty-two".

Divisors: 1 2 3 6 31 62 93 186 152985347 305970694 458956041 917912082 4742545757 9485091514 14227637271 28455274542