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28752931454976 = 2183234912
BaseRepresentation
bin1101000100110100100000…
…10001000000000000000000
310202210202100020012211010100
412202122100101000000000
512232042000423024401
6141052525300202400
76025221305556321
oct642322021000000
9122722306184110
1028752931454976
119186060245483
123284616699400
13130750b519891
147159139b4448
1534cde2c9cb86
hex1a2690440000

28752931454976 has 171 divisors, whose sum is σ = 83087666303863. Its totient is φ = 9581565050880.

The previous prime is 28752931454969. The next prime is 28752931454981. The reversal of 28752931454976 is 67945413925782.

The square root of 28752931454976 is 5362176.

It is a perfect power (a square), and thus also a powerful number.

28752931454976 is a `hidden beast` number, since 2 + 8 + 7 + 5 + 2 + 9 + 3 + 1 + 4 + 549 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8236300591 + ... + 8236304081.

Almost surely, 228752931454976 is an apocalyptic number.

28752931454976 is the 5362176-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28752931454976

28752931454976 is an abundant number, since it is smaller than the sum of its proper divisors (54334734848887).

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

28752931454976 is an frugal number, since it uses more digits than its factorization.

28752931454976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024 (or 3496 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 72.

The spelling of 28752931454976 in words is "twenty-eight trillion, seven hundred fifty-two billion, nine hundred thirty-one million, four hundred fifty-four thousand, nine hundred seventy-six".