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153133331 = 13171936469
BaseRepresentation
bin10010010000010…
…10000100010011
3101200010222102212
421020022010103
5303200231311
623110102335
73536416601
oct1110120423
9350128385
10153133331
117949237a
124334a9ab
1325958150
14164a2871
15d69cc8b
hex920a113

153133331 has 16 divisors (see below), whose sum is σ = 183808800. Its totient is φ = 126033408.

The previous prime is 153133327. The next prime is 153133349. The reversal of 153133331 is 133331351.

It is a cyclic number.

It is not a de Polignac number, because 153133331 - 22 = 153133327 is a prime.

It is a super-2 number, since 2×1531333312 = 46899634126311122, 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 = 153133297 and 153133306.

It is not an unprimeable number, because it can be changed into a prime (153133301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14036 + ... + 22433.

It is an arithmetic number, because the mean of its divisors is an integer number (11488050).

Almost surely, 2153133331 is an apocalyptic number.

153133331 is a deficient number, since it is larger than the sum of its proper divisors (30675469).

153133331 is a wasteful number, since it uses less digits than its factorization.

153133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36518.

The product of its digits is 1215, while the sum is 23.

The square root of 153133331 is about 12374.7052894200. The cubic root of 153133331 is about 535.0034424910.

Adding to 153133331 its reverse (133331351), we get a palindrome (286464682).

The spelling of 153133331 in words is "one hundred fifty-three million, one hundred thirty-three thousand, three hundred thirty-one".

Divisors: 1 13 17 19 221 247 323 4199 36469 474097 619973 692911 8059649 9007843 11779487 153133331