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90948472800 = 25352331114487
BaseRepresentation
bin101010010110011110…
…0111000111111100000
322200202100121010012120
41110230330320333200
52442230302112200
6105440421224240
76366534156243
oct1245474707740
9280670533176
1090948472800
1135631050809
1215762562080
13876548aba3
14458ac7525a
1525747809a0
hex152cf38fe0

90948472800 has 144 divisors (see below), whose sum is σ = 296934244992. Its totient is φ = 24179443200.

The previous prime is 90948472739. The next prime is 90948472807. The reversal of 90948472800 is 827484909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90948472807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 737157 + ... + 851643.

It is an arithmetic number, because the mean of its divisors is an integer number (2062043368).

Almost surely, 290948472800 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 90948472800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148467122496).

90948472800 is an abundant number, since it is smaller than the sum of its proper divisors (205985772192).

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

90948472800 is a wasteful number, since it uses less digits than its factorization.

90948472800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114841 (or 114828 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 90948472800 in words is "ninety billion, nine hundred forty-eight million, four hundred seventy-two thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 300 331 400 480 600 662 800 993 1200 1324 1655 1986 2400 2648 3310 3972 4965 5296 6620 7944 8275 9930 10592 13240 15888 16550 19860 24825 26480 31776 33100 39720 49650 52960 66200 79440 99300 114487 132400 158880 198600 228974 264800 343461 397200 457948 572435 686922 794400 915896 1144870 1373844 1717305 1831792 2289740 2747688 2862175 3434610 3663584 4579480 5495376 5724350 6869220 8586525 9158960 10990752 11448700 13738440 17173050 18317920 22897400 27476880 34346100 37895197 45794800 54953760 68692200 75790394 91589600 113685591 137384400 151580788 189475985 227371182 274768800 303161576 378951970 454742364 568427955 606323152 757903940 909484728 947379925 1136855910 1212646304 1515807880 1818969456 1894759850 2273711820 2842139775 3031615760 3637938912 3789519700 4547423640 5684279550 6063231520 7579039400 9094847280 11368559100 15158078800 18189694560 22737118200 30316157600 45474236400 90948472800