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55150383800 = 2352275751919
BaseRepresentation
bin110011010111001110…
…000001001010111000
312021100112011202222102
4303113032001022320
51400421444240200
641200304042532
73661451345651
oct632716011270
9167315152872
1055150383800
1121430a54696
12a831903448
13527bb030c5
14295277a528
15167bb046d5
hexcd73812b8

55150383800 has 24 divisors (see below), whose sum is σ = 128224642800. Its totient is φ = 22060153440.

The previous prime is 55150383797. The next prime is 55150383803. The reversal of 55150383800 is 838305155.

It is an interprime number because it is at equal distance from previous prime (55150383797) and next prime (55150383803).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55150383803) 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 5 ways as a sum of consecutive naturals, for example, 137875760 + ... + 137876159.

It is an arithmetic number, because the mean of its divisors is an integer number (5342693450).

Almost surely, 255150383800 is an apocalyptic number.

55150383800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55150383800 is an abundant number, since it is smaller than the sum of its proper divisors (73074259000).

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

55150383800 is a wasteful number, since it uses less digits than its factorization.

55150383800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275751935 (or 275751926 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 55150383800 its reverse (838305155), we get a palindrome (55988688955).

The spelling of 55150383800 in words is "fifty-five billion, one hundred fifty million, three hundred eighty-three thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 275751919 551503838 1103007676 1378759595 2206015352 2757519190 5515038380 6893797975 11030076760 13787595950 27575191900 55150383800