Search a number
-
+
51233252000 = 255371829759
BaseRepresentation
bin101111101101101111…
…010110001010100000
311220020112101212022212
4233231233112022200
51314411203031000
635311454221252
73462415312430
oct575557261240
9156215355285
1051233252000
111a800920587
129b19ab4828
134aa6407438
1426a04382c0
1514ecc9cc35
hexbedbd62a0

51233252000 has 96 divisors (see below), whose sum is σ = 143863050240. Its totient is φ = 17565676800.

The previous prime is 51233251961. The next prime is 51233252003. The reversal of 51233252000 is 25233215.

It is a super-2 number, since 2×512332520002 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51233252003) 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, 886880 + ... + 942879.

It is an arithmetic number, because the mean of its divisors is an integer number (1498573440).

Almost surely, 251233252000 is an apocalyptic number.

51233252000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51233252000 is an abundant number, since it is smaller than the sum of its proper divisors (92629798240).

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

51233252000 is a wasteful number, since it uses less digits than its factorization.

51233252000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829791 (or 1829773 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 51233252000 its reverse (25233215), we get a palindrome (51258485215).

The spelling of 51233252000 in words is "fifty-one billion, two hundred thirty-three million, two hundred fifty-two thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 160 175 200 224 250 280 350 400 500 560 700 800 875 1000 1120 1400 1750 2000 2800 3500 4000 5600 7000 14000 28000 1829759 3659518 7319036 9148795 12808313 14638072 18297590 25616626 29276144 36595180 45743975 51233252 58552288 64041565 73190360 91487950 102466504 128083130 146380720 182975900 204933008 228719875 256166260 292761440 320207825 365951800 409866016 457439750 512332520 640415650 731903600 914879500 1024665040 1280831300 1463807200 1601039125 1829759000 2049330080 2561662600 3202078250 3659518000 5123325200 6404156500 7319036000 10246650400 12808313000 25616626000 51233252000