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172085037 = 3280120479
BaseRepresentation
bin10100100000111…
…00111100101101
3102222210211021220
422100130330231
5323023210122
625024213553
74156461435
oct1220347455
9388724256
10172085037
1189157043
124976a2b9
1329862387
1418bd72c5
151019325c
hexa41cf2d

172085037 has 8 divisors (see below), whose sum is σ = 229539840. Its totient is φ = 114676800.

The previous prime is 172085021. The next prime is 172085041. The reversal of 172085037 is 730580271.

172085037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172085037 - 24 = 172085021 is a prime.

It is a super-2 number, since 2×1720850372 = 59226519918582738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172084989 and 172085007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172085047) 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, 1837 + ... + 18642.

It is an arithmetic number, because the mean of its divisors is an integer number (28692480).

Almost surely, 2172085037 is an apocalyptic number.

It is an amenable number.

172085037 is a deficient number, since it is larger than the sum of its proper divisors (57454803).

172085037 is a wasteful number, since it uses less digits than its factorization.

172085037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23283.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 172085037 is about 13118.1186532216. The cubic root of 172085037 is about 556.2214119550.

The spelling of 172085037 in words is "one hundred seventy-two million, eighty-five thousand, thirty-seven".

Divisors: 1 3 2801 8403 20479 61437 57361679 172085037