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275182138 = 27211397643
BaseRepresentation
bin10000011001101…
…111001000111010
3201011210200221001
4100121233020322
51030421312023
643150035214
76551003200
oct2031571072
9634720831
10275182138
11131373460
12781a8b0a
134501b78a
1428793070
151925a6ad
hex1066f23a

275182138 has 48 divisors (see below), whose sum is σ = 525952224. Its totient is φ = 106777440.

The previous prime is 275182123. The next prime is 275182139. The reversal of 275182138 is 831281572.

It is a junction number, because it is equal to n+sod(n) for n = 275182097 and 275182106.

It is not an unprimeable number, because it can be changed into a prime (275182139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427645 + ... + 428287.

It is an arithmetic number, because the mean of its divisors is an integer number (10957338).

Almost surely, 2275182138 is an apocalyptic number.

275182138 is a deficient number, since it is larger than the sum of its proper divisors (250770086).

275182138 is a wasteful number, since it uses less digits than its factorization.

275182138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1060 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 275182138 is about 16588.6147100956. The cubic root of 275182138 is about 650.4392596959.

The spelling of 275182138 in words is "two hundred seventy-five million, one hundred eighty-two thousand, one hundred thirty-eight".

Divisors: 1 2 7 11 14 22 49 77 98 154 397 539 643 794 1078 1286 2779 4367 4501 5558 7073 8734 9002 14146 19453 30569 31507 38906 49511 61138 63014 99022 213983 255271 346577 427966 510542 693154 1786897 2807981 3573794 5615962 12508279 19655867 25016558 39311734 137591069 275182138