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28804197036384 = 253271117219236549
BaseRepresentation
bin1101000110010011111111…
…11011101011000101100000
310202222122200000110012001200
412203021333323223011200
512233411443420131014
6141132244311401200
76032014566041640
oct643117773530540
9122878600405050
1028804197036384
1191a5878337580
123292543383200
13130c2bb533333
147181b8426520
1534e3e37d4a09
hex1a327feeb160

28804197036384 has 864 divisors, whose sum is σ = 114194834208000. Its totient is φ = 6670880686080.

The previous prime is 28804197036353. The next prime is 28804197036389. The reversal of 28804197036384 is 48363079140882.

28804197036384 is a `hidden beast` number, since 2 + 8 + 8 + 0 + 4 + 197 + 0 + 363 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28804197036389) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 121650142 + ... + 121886690.

It is an arithmetic number, because the mean of its divisors is an integer number (132169947000).

Almost surely, 228804197036384 is an apocalyptic number.

28804197036384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28804197036384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57097417104000).

28804197036384 is an abundant number, since it is smaller than the sum of its proper divisors (85390637171616).

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

28804197036384 is a wasteful number, since it uses less digits than its factorization.

28804197036384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236636 (or 236608 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 28804197036384 in words is "twenty-eight trillion, eight hundred four billion, one hundred ninety-seven million, thirty-six thousand, three hundred eighty-four".