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172068601 = 211815491
BaseRepresentation
bin10100100000110…
…00111011111001
3102222202222202011
422100120323321
5323022143401
625024005521
74156362505
oct1220307371
9388688664
10172068601
1189145761
12497608a1
1329857a53
1418bd1305
151018d451
hexa418ef9

172068601 has 4 divisors (see below), whose sum is σ = 172884304. Its totient is φ = 171252900.

The previous prime is 172068593. The next prime is 172068613. The reversal of 172068601 is 106860271.

172068601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106860271 = 715265753.

It is a cyclic number.

It is not a de Polignac number, because 172068601 - 23 = 172068593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172062601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407535 + ... + 407956.

It is an arithmetic number, because the mean of its divisors is an integer number (43221076).

Almost surely, 2172068601 is an apocalyptic number.

It is an amenable number.

172068601 is a deficient number, since it is larger than the sum of its proper divisors (815703).

172068601 is an equidigital number, since it uses as much as digits as its factorization.

172068601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815702.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 172068601 is about 13117.4921764795. The cubic root of 172068601 is about 556.2037029851.

The spelling of 172068601 in words is "one hundred seventy-two million, sixty-eight thousand, six hundred one".

Divisors: 1 211 815491 172068601