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228660862560 = 253513195997337
BaseRepresentation
bin1101010011110100111…
…1111101111001100000
3210212012202202100122120
43110331033331321200
512221244140100220
6253013443504240
722343300156034
oct3247517757140
9725182670576
10228660862560
1188a7a106479
1238396088080
1318741125250
14b0d273c1c4
155e3472ba40
hex353d3fde60

228660862560 has 768 divisors, whose sum is σ = 841402598400. Its totient is φ = 51725205504.

The previous prime is 228660862543. The next prime is 228660862601. The reversal of 228660862560 is 65268066822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 678518712 + ... + 678519048.

It is an arithmetic number, because the mean of its divisors is an integer number (1095576300).

Almost surely, 2228660862560 is an apocalyptic number.

228660862560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228660862560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420701299200).

228660862560 is an abundant number, since it is smaller than the sum of its proper divisors (612741735840).

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

228660862560 is a wasteful number, since it uses less digits than its factorization.

228660862560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 228660862560 in words is "two hundred twenty-eight billion, six hundred sixty million, eight hundred sixty-two thousand, five hundred sixty".