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172049061 = 3173373511
BaseRepresentation
bin10100100000101…
…00001010100101
3102222201222221110
422100110022211
5323021032221
625023335233
74156251522
oct1220241245
9388658843
10172049061
1189132008
1249751519
132984bba2
1418bc8149
1510187776
hexa4142a5

172049061 has 8 divisors (see below), whose sum is σ = 242892864. Its totient is φ = 107952320.

The previous prime is 172049051. The next prime is 172049069. The reversal of 172049061 is 160940271.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 172049061 - 25 = 172049029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172049069) 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, 1686705 + ... + 1686806.

It is an arithmetic number, because the mean of its divisors is an integer number (30361608).

Almost surely, 2172049061 is an apocalyptic number.

It is an amenable number.

172049061 is a deficient number, since it is larger than the sum of its proper divisors (70843803).

172049061 is a wasteful number, since it uses less digits than its factorization.

172049061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373531.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 172049061 is about 13116.7473483330. The cubic root of 172049061 is about 556.1826481428.

The spelling of 172049061 in words is "one hundred seventy-two million, forty-nine thousand, sixty-one".

Divisors: 1 3 17 51 3373511 10120533 57349687 172049061