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180685053 = 3313748847
BaseRepresentation
bin10101100010100…
…00100011111101
3110120222202022000
422301100203331
5332223410203
625532412513
74322540403
oct1261204375
9416882260
10180685053
1192aa039a
1250617139
132b583943
1419dd5473
1510ce14a3
hexac508fd

180685053 has 16 divisors (see below), whose sum is σ = 269640960. Its totient is φ = 119575008.

The previous prime is 180685039. The next prime is 180685067. The reversal of 180685053 is 350586081.

180685053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (180685039) and next prime (180685067).

It is not a de Polignac number, because 180685053 - 29 = 180684541 is a prime.

It is a super-2 number, since 2×1806850532 = 65294176755225618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180684999 and 180685017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180683053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20725 + ... + 28122.

It is an arithmetic number, because the mean of its divisors is an integer number (16852560).

Almost surely, 2180685053 is an apocalyptic number.

It is an amenable number.

180685053 is a deficient number, since it is larger than the sum of its proper divisors (88955907).

180685053 is a wasteful number, since it uses less digits than its factorization.

180685053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48993 (or 48987 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 180685053 is about 13441.9140378147. The cubic root of 180685053 is about 565.3369989438.

The spelling of 180685053 in words is "one hundred eighty million, six hundred eighty-five thousand, fifty-three".

Divisors: 1 3 9 27 137 411 1233 3699 48847 146541 439623 1318869 6692039 20076117 60228351 180685053