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162135053 = 315230163
BaseRepresentation
bin10011010100111…
…11110000001101
3102022002022110222
421222133300031
5313001310203
624031041125
74006060643
oct1152376015
9368068428
10162135053
1183580513
12463701a5
132778a502
1417767193
15e37a038
hex9a9fc0d

162135053 has 4 divisors (see below), whose sum is σ = 167365248. Its totient is φ = 156904860.

The previous prime is 162135041. The next prime is 162135059. The reversal of 162135053 is 350531261.

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: 350531261 = 1177929759.

It is a cyclic number.

It is not a de Polignac number, because 162135053 - 214 = 162118669 is a prime.

It is a super-2 number, since 2×1621350532 = 52575550822625618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162135059) 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, 2615051 + ... + 2615112.

It is an arithmetic number, because the mean of its divisors is an integer number (41841312).

Almost surely, 2162135053 is an apocalyptic number.

It is an amenable number.

162135053 is a deficient number, since it is larger than the sum of its proper divisors (5230195).

162135053 is an equidigital number, since it uses as much as digits as its factorization.

162135053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230194.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 162135053 is about 12733.2263389920. The cubic root of 162135053 is about 545.2876219382.

The spelling of 162135053 in words is "one hundred sixty-two million, one hundred thirty-five thousand, fifty-three".

Divisors: 1 31 5230163 162135053