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152420111 = 1797091201
BaseRepresentation
bin10010001010110…
…11111100001111
3101121210202002022
421011123330033
5303004420421
623042520355
73530356334
oct1105337417
9347722068
10152420111
1179045538
12430660bb
132576861c
141635898b
15d5ab7ab
hex915bf0f

152420111 has 8 divisors (see below), whose sum is σ = 153615600. Its totient is φ = 151228800.

The previous prime is 152420053. The next prime is 152420117. The reversal of 152420111 is 111024251.

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

It is a cyclic number.

It is not a de Polignac number, because 152420111 - 210 = 152419087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152420111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152420117) 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, 126311 + ... + 127511.

It is an arithmetic number, because the mean of its divisors is an integer number (19201950).

Almost surely, 2152420111 is an apocalyptic number.

152420111 is a deficient number, since it is larger than the sum of its proper divisors (1195489).

152420111 is a wasteful number, since it uses less digits than its factorization.

152420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 152420111 is about 12345.8540004327. The cubic root of 152420111 is about 534.1715550392.

Adding to 152420111 its reverse (111024251), we get a palindrome (263444362).

The spelling of 152420111 in words is "one hundred fifty-two million, four hundred twenty thousand, one hundred eleven".

Divisors: 1 179 709 1201 126911 214979 851509 152420111