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228604925380 = 22513879249713
BaseRepresentation
bin1101010011100111101…
…0100101010111000100
3210212001212111110021011
43110321322211113010
512221140330103010
6253004124532004
722342020542626
oct3247172452704
9725055443234
10228604925380
1188a5057aaa7
123837b3b1004
131873266b620
14b0c913ac16
155e2e87ca8a
hex3539ea55c4

228604925380 has 24 divisors (see below), whose sum is σ = 516998831832. Its totient is φ = 84407972352.

The previous prime is 228604925327. The next prime is 228604925383. The reversal of 228604925380 is 83529406822.

It can be written as a sum of positive squares in 4 ways, for example, as 11508569284 + 217096356096 = 107278^2 + 465936^2 .

It is not an unprimeable number, because it can be changed into a prime (228604925383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439624597 + ... + 439625116.

It is an arithmetic number, because the mean of its divisors is an integer number (21541617993).

Almost surely, 2228604925380 is an apocalyptic number.

228604925380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228604925380 is an abundant number, since it is smaller than the sum of its proper divisors (288393906452).

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

228604925380 is a wasteful number, since it uses less digits than its factorization.

228604925380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879249735 (or 879249733 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 228604925380 in words is "two hundred twenty-eight billion, six hundred four million, nine hundred twenty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 879249713 1758499426 3516998852 4396248565 8792497130 11430246269 17584994260 22860492538 45720985076 57151231345 114302462690 228604925380