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25728082752 = 2634719914327
BaseRepresentation
bin10111111101100000…
…110110001101000000
32110102000221000120210
4113331200312031000
5410142342122002
615452550034120
71600365044421
oct277540661500
973360830523
1025728082752
11aa02917409
124ba0348940
132570329008
141360d51648
15a08a9096c
hex5fd836340

25728082752 has 112 divisors (see below), whose sum is σ = 69874790400. Its totient is φ = 8350797312.

The previous prime is 25728082747. The next prime is 25728082759.

25728082752 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25728082759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788613 + ... + 1802939.

Almost surely, 225728082752 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 25728082752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34937395200).

25728082752 is an abundant number, since it is smaller than the sum of its proper divisors (44146707648).

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

25728082752 is a wasteful number, since it uses less digits than its factorization.

25728082752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14588 (or 14578 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 25728082752 in words is "twenty-five billion, seven hundred twenty-eight million, eighty-two thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 47 48 64 94 96 141 188 192 199 282 376 398 564 597 752 796 1128 1194 1504 1592 2256 2388 3008 3184 4512 4776 6368 9024 9353 9552 12736 14327 18706 19104 28059 28654 37412 38208 42981 56118 57308 74824 85962 112236 114616 149648 171924 224472 229232 299296 343848 448944 458464 598592 673369 687696 897888 916928 1346738 1375392 1795776 2020107 2693476 2750784 2851073 4040214 5386952 5702146 8080428 8553219 10773904 11404292 16160856 17106438 21547808 22808584 32321712 34212876 43095616 45617168 64643424 68425752 91234336 129286848 134000431 136851504 182468672 268000862 273703008 402001293 536001724 547406016 804002586 1072003448 1608005172 2144006896 3216010344 4288013792 6432020688 8576027584 12864041376 25728082752