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55853503230 = 23571729796829
BaseRepresentation
bin110100000001001000…
…001101001011111110
312100011112012221111210
4310001020031023332
51403341444100410
641354142225250
74015046641560
oct640110151376
9170145187453
1055853503230
1121761934728
12a9a9285226
1353616952c5
1429bbcc7330
1516bd6e1220
hexd0120d2fe

55853503230 has 256 divisors, whose sum is σ = 169952256000. Its totient is φ = 11452686336.

The previous prime is 55853503187. The next prime is 55853503231. The reversal of 55853503230 is 3230535855.

It is a super-2 number, since 2×558535032302 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55853503231) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8175456 + ... + 8182284.

It is an arithmetic number, because the mean of its divisors is an integer number (663876000).

Almost surely, 255853503230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55853503230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84976128000).

55853503230 is an abundant number, since it is smaller than the sum of its proper divisors (114098752770).

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

55853503230 is a wasteful number, since it uses less digits than its factorization.

55853503230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 55853503230 in words is "fifty-five billion, eight hundred fifty-three million, five hundred three thousand, two hundred thirty".