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147172205 = 5123123911
BaseRepresentation
bin10001100010110…
…10101101101101
3101020221010022102
420301122231231
5300134002310
622334224445
73434641325
oct1061325555
9336833272
10147172205
1176090724
1241355125
132464ba5b
1415790285
15cdc18a5
hex8c5ab6d

147172205 has 8 divisors (see below), whose sum is σ = 176757504. Its totient is φ = 117637200.

The previous prime is 147172177. The next prime is 147172231. The reversal of 147172205 is 502271741.

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

It is not a de Polignac number, because 147172205 - 214 = 147155821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5801 + ... + 18110.

It is an arithmetic number, because the mean of its divisors is an integer number (22094688).

Almost surely, 2147172205 is an apocalyptic number.

It is an amenable number.

147172205 is a deficient number, since it is larger than the sum of its proper divisors (29585299).

147172205 is a wasteful number, since it uses less digits than its factorization.

147172205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25147.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 147172205 is about 12131.4551888881. The cubic root of 147172205 is about 527.9692133201.

The spelling of 147172205 in words is "one hundred forty-seven million, one hundred seventy-two thousand, two hundred five".

Divisors: 1 5 1231 6155 23911 119555 29434441 147172205