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162240145 = 5191707791
BaseRepresentation
bin10011010101110…
…01011010010001
3102022021122122021
421222321122101
5313013141040
624033211441
74010006224
oct1152713221
9368248567
10162240145
1183642471
1246400b81
13277c62b2
14177935bb
15e39b24a
hex9ab9691

162240145 has 8 divisors (see below), whose sum is σ = 204935040. Its totient is φ = 122960880.

The previous prime is 162240139. The next prime is 162240149. The reversal of 162240145 is 541042261.

It is a happy number.

162240145 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 162240145 - 219 = 161715857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162240149) 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, 853801 + ... + 853990.

It is an arithmetic number, because the mean of its divisors is an integer number (25616880).

Almost surely, 2162240145 is an apocalyptic number.

It is an amenable number.

162240145 is a deficient number, since it is larger than the sum of its proper divisors (42694895).

162240145 is a wasteful number, since it uses less digits than its factorization.

162240145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707815.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 162240145 is about 12737.3523543945. The cubic root of 162240145 is about 545.4054105530.

The spelling of 162240145 in words is "one hundred sixty-two million, two hundred forty thousand, one hundred forty-five".

Divisors: 1 5 19 95 1707791 8538955 32448029 162240145