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53442202220 = 225111991220699
BaseRepresentation
bin110001110001011001…
…110100101001101100
312002221110221011100222
4301301121310221230
51333422200432340
640315003510512
73601230136511
oct616131645154
9162843834328
1053442202220
1120734803580
12a435828438
135068c50884
14282d965308
1515cbb868b5
hexc71674a6c

53442202220 has 48 divisors (see below), whose sum is σ = 123046560000. Its totient is φ = 19335856320.

The previous prime is 53442202181. The next prime is 53442202241. The reversal of 53442202220 is 2220224435.

It is a happy number.

53442202220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53442202220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566570 + ... + 654129.

It is an arithmetic number, because the mean of its divisors is an integer number (2563470000).

Almost surely, 253442202220 is an apocalyptic number.

It is an amenable number.

53442202220 is an abundant number, since it is smaller than the sum of its proper divisors (69604357780).

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

53442202220 is a wasteful number, since it uses less digits than its factorization.

53442202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220918 (or 1220916 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 53442202220 its reverse (2220224435), we get a palindrome (55662426655).

The spelling of 53442202220 in words is "fifty-three billion, four hundred forty-two million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 199 220 398 796 995 1990 2189 3980 4378 8756 10945 21890 43780 1220699 2441398 4882796 6103495 12206990 13427689 24413980 26855378 53710756 67138445 134276890 242919101 268553780 485838202 971676404 1214595505 2429191010 2672110111 4858382020 5344220222 10688440444 13360550555 26721101110 53442202220