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55142033200 = 2452137855083
BaseRepresentation
bin110011010110101110…
…001010011100110000
312021022221110112002221
4303112232022130300
51400412330030300
641155405050424
73661320356122
oct632656123460
9167287415087
1055142033200
1121427270771
12a82ab56a14
13527a16b217
142951605212
15167b00531a
hexcd6b8a730

55142033200 has 30 divisors (see below), whose sum is σ = 132478735724. Its totient is φ = 22056813120.

The previous prime is 55142033189. The next prime is 55142033231. The reversal of 55142033200 is 233024155.

55142033200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68927142 + ... + 68927941.

Almost surely, 255142033200 is an apocalyptic number.

55142033200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55142033200 is an abundant number, since it is smaller than the sum of its proper divisors (77336702524).

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

55142033200 is a wasteful number, since it uses less digits than its factorization.

55142033200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137855101 (or 137855090 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 55142033200 its reverse (233024155), we get a palindrome (55375057355).

The spelling of 55142033200 in words is "fifty-five billion, one hundred forty-two million, thirty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 137855083 275710166 551420332 689275415 1102840664 1378550830 2205681328 2757101660 3446377075 5514203320 6892754150 11028406640 13785508300 27571016600 55142033200