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28633472000 = 21053731957
BaseRepresentation
bin11010101010101100…
…000001110000000000
32201220111221002100222
4122222230001300000
5432120132101000
621053134402212
72032364332130
oct325254016000
981814832328
1028633472000
1111163937351
125671360368
132914235a53
141558b6aac0
15b28b96a85
hex6aab01c00

28633472000 has 176 divisors, whose sum is σ = 81641696448. Its totient is φ = 9816883200.

The previous prime is 28633471969. The next prime is 28633472003. The reversal of 28633472000 is 27433682.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28633472003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880022 + ... + 911978.

Almost surely, 228633472000 is an apocalyptic number.

28633472000 is a gapful number since it is divisible by the number (20) 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 28633472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40820848224).

28633472000 is an abundant number, since it is smaller than the sum of its proper divisors (53008224448).

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

28633472000 is an equidigital number, since it uses as much as digits as its factorization.

28633472000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31999 (or 31971 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 28633472000 in words is "twenty-eight billion, six hundred thirty-three million, four hundred seventy-two thousand".