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152122105 = 561498761
BaseRepresentation
bin10010001000100…
…11001011111001
3101121020121022001
421010103023321
5302420401410
623032301001
73525005452
oct1104231371
9347217261
10152122105
1178961653
1242b41761
1325692aa5
14162bc129
15d54d33a
hex91132f9

152122105 has 8 divisors (see below), whose sum is σ = 185539464. Its totient is φ = 119702400.

The previous prime is 152122099. The next prime is 152122109. The reversal of 152122105 is 501221251.

It can be written as a sum of positive squares in 4 ways, for example, as 1225449 + 150896656 = 1107^2 + 12284^2 .

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

It is not a de Polignac number, because 152122105 - 25 = 152122073 is a prime.

It is a super-2 number, since 2×1521221052 = 46282269659262050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152122109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249076 + ... + 249685.

It is an arithmetic number, because the mean of its divisors is an integer number (23192433).

Almost surely, 2152122105 is an apocalyptic number.

It is an amenable number.

152122105 is a deficient number, since it is larger than the sum of its proper divisors (33417359).

152122105 is an equidigital number, since it uses as much as digits as its factorization.

152122105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498827.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 152122105 is about 12333.7790234786. The cubic root of 152122105 is about 533.8231972771.

Adding to 152122105 its reverse (501221251), we get a palindrome (653343356).

The spelling of 152122105 in words is "one hundred fifty-two million, one hundred twenty-two thousand, one hundred five".

Divisors: 1 5 61 305 498761 2493805 30424421 152122105