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28636630322524 = 2272359712307487
BaseRepresentation
bin1101000001011011111000…
…01011011000110101011100
310202101122011000010011000021
412200231330023120311130
512223140304330310044
6140523253015241524
76013633252343320
oct640557413306534
9122348130104007
1028636630322524
1191407aa297294
123265b796792a4
1312c956574a843
1471003d9d5980
15349d878d7e84
hex1a0b7c2d8d5c

28636630322524 has 288 divisors, whose sum is σ = 61972190945280. Its totient is φ = 11317382778240.

The previous prime is 28636630322519. The next prime is 28636630322543. The reversal of 28636630322524 is 42522303663682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58802115409 + ... + 58802115895.

It is an arithmetic number, because the mean of its divisors is an integer number (215181218560).

Almost surely, 228636630322524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28636630322524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30986095472640).

28636630322524 is an abundant number, since it is smaller than the sum of its proper divisors (33335560622756).

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

28636630322524 is a wasteful number, since it uses less digits than its factorization.

28636630322524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 52.

The spelling of 28636630322524 in words is "twenty-eight trillion, six hundred thirty-six billion, six hundred thirty million, three hundred twenty-two thousand, five hundred twenty-four".