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153214121 = 3116992909
BaseRepresentation
bin10010010000111…
…01110010101001
3101200022002021002
421020131302221
5303210322441
623111524345
73540204254
oct1110356251
9350262232
10153214121
1179538045
12433896b5
1325985b58
14164c409b
15d6b6b9b
hex921dca9

153214121 has 8 divisors (see below), whose sum is σ = 158304000. Its totient is φ = 148133520.

The previous prime is 153214111. The next prime is 153214169. The reversal of 153214121 is 121412351.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-153214121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153214093 and 153214102.

It is not an unprimeable number, because it can be changed into a prime (153214111) 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, 51215 + ... + 54123.

It is an arithmetic number, because the mean of its divisors is an integer number (19788000).

Almost surely, 2153214121 is an apocalyptic number.

It is an amenable number.

153214121 is a deficient number, since it is larger than the sum of its proper divisors (5089879).

153214121 is a wasteful number, since it uses less digits than its factorization.

153214121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639.

The product of its digits is 240, while the sum is 20.

The square root of 153214121 is about 12377.9691791505. The cubic root of 153214121 is about 535.0975115590.

Adding to 153214121 its reverse (121412351), we get a palindrome (274626472).

The spelling of 153214121 in words is "one hundred fifty-three million, two hundred fourteen thousand, one hundred twenty-one".

Divisors: 1 31 1699 2909 52669 90179 4942391 153214121