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153330031 = 367417793
BaseRepresentation
bin10010010001110…
…10000101101111
3101200111222021001
421020322011233
5303223030111
623114221131
73541166221
oct1110720557
9350458231
10153330031
1179607138
12434247a7
13259c683a
1416514411
15d6db1c1
hex923a16f

153330031 has 4 divisors (see below), whose sum is σ = 153748192. Its totient is φ = 152911872.

The previous prime is 153330017. The next prime is 153330071. The reversal of 153330031 is 130033351.

153330031 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.

It is a cyclic number.

It is not a de Polignac number, because 153330031 - 219 = 152805743 is a prime.

It is a super-2 number, since 2×1533300312 = 47020196812921922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153329990 and 153330008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153330011) 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, 208530 + ... + 209263.

It is an arithmetic number, because the mean of its divisors is an integer number (38437048).

Almost surely, 2153330031 is an apocalyptic number.

153330031 is a deficient number, since it is larger than the sum of its proper divisors (418161).

153330031 is an equidigital number, since it uses as much as digits as its factorization.

153330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418160.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 153330031 is about 12382.6504028823. The cubic root of 153330031 is about 535.2324153962.

Adding to 153330031 its reverse (130033351), we get a palindrome (283363382).

The spelling of 153330031 in words is "one hundred fifty-three million, three hundred thirty thousand, thirty-one".

Divisors: 1 367 417793 153330031