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220372893 = 34133143157
BaseRepresentation
bin11010010001010…
…01111110011101
3120100200002210000
431020221332131
5422403413033
633511204513
75314065366
oct1510517635
9510602700
10220372893
11103438464
1261976739
133686b380
14213a6b6d
1514530a13
hexd229f9d

220372893 has 80 divisors (see below), whose sum is σ = 376854016. Its totient is φ = 127370880.

The previous prime is 220372879. The next prime is 220372907. The reversal of 220372893 is 398273022.

It is an interprime number because it is at equal distance from previous prime (220372879) and next prime (220372907).

It is not a de Polignac number, because 220372893 - 25 = 220372861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220372843) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1403571 + ... + 1403727.

Almost surely, 2220372893 is an apocalyptic number.

It is an amenable number.

220372893 is a deficient number, since it is larger than the sum of its proper divisors (156481123).

220372893 is a wasteful number, since it uses less digits than its factorization.

220372893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 220372893 is about 14844.9618726354. The cubic root of 220372893 is about 604.0219545621.

The spelling of 220372893 in words is "two hundred twenty million, three hundred seventy-two thousand, eight hundred ninety-three".

Divisors: 1 3 9 13 27 31 39 43 81 93 117 129 157 279 351 387 403 471 559 837 1053 1161 1209 1333 1413 1677 2041 2511 3483 3627 3999 4239 4867 5031 6123 6751 10881 11997 12717 14601 15093 17329 18369 20253 32643 35991 43803 45279 51987 55107 60759 63271 87763 107973 131409 155961 165321 182277 189813 209281 263289 394227 467883 546831 569439 627843 789867 1403649 1708317 1883529 2369601 2720653 5124951 5650587 7108803 8161959 16951761 24485877 73457631 220372893