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152542145 = 572622621
BaseRepresentation
bin10010001011110…
…01101111000001
3101122000221111002
421011321233001
5303022322040
623045301345
73531405200
oct1105715701
9348027432
10152542145
1179119198
1243104855
13257ac032
141638b237
15d5d2a15
hex9179bc1

152542145 has 12 divisors (see below), whose sum is σ = 212936724. Its totient is φ = 104600160.

The previous prime is 152542123. The next prime is 152542153. The reversal of 152542145 is 541245251.

152542145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 120472576 + 32069569 = 10976^2 + 5663^2 .

It is not a de Polignac number, because 152542145 - 218 = 152280001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311066 + ... + 311555.

It is an arithmetic number, because the mean of its divisors is an integer number (17744727).

Almost surely, 2152542145 is an apocalyptic number.

It is an amenable number.

152542145 is a deficient number, since it is larger than the sum of its proper divisors (60394579).

152542145 is an equidigital number, since it uses as much as digits as its factorization.

152542145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622640 (or 622633 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 152542145 is about 12350.7953185210. The cubic root of 152542145 is about 534.3140771374.

Adding to 152542145 its reverse (541245251), we get a palindrome (693787396).

The spelling of 152542145 in words is "one hundred fifty-two million, five hundred forty-two thousand, one hundred forty-five".

Divisors: 1 5 7 35 49 245 622621 3113105 4358347 21791735 30508429 152542145