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152425643 = 487312989
BaseRepresentation
bin10010001010111…
…01010010101011
3101121211000200012
421011131102223
5303010110033
623043002135
73530411426
oct1105352253
9347730605
10152425643
1179049707
124306934b
132576acb6
141635a9bd
15d5ad248
hex915d4ab

152425643 has 4 divisors (see below), whose sum is σ = 152739120. Its totient is φ = 152112168.

The previous prime is 152425639. The next prime is 152425661. The reversal of 152425643 is 346524251.

152425643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346524251 = 418451811.

It is a cyclic number.

It is not a de Polignac number, because 152425643 - 22 = 152425639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152425633) 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, 156008 + ... + 156981.

It is an arithmetic number, because the mean of its divisors is an integer number (38184780).

Almost surely, 2152425643 is an apocalyptic number.

152425643 is a deficient number, since it is larger than the sum of its proper divisors (313477).

152425643 is an equidigital number, since it uses as much as digits as its factorization.

152425643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313476.

The product of its digits is 28800, while the sum is 32.

The square root of 152425643 is about 12346.0780412243. The cubic root of 152425643 is about 534.1780174438.

Adding to 152425643 its reverse (346524251), we get a palindrome (498949894).

The spelling of 152425643 in words is "one hundred fifty-two million, four hundred twenty-five thousand, six hundred forty-three".

Divisors: 1 487 312989 152425643