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153343431 = 3217038159
BaseRepresentation
bin10010010001111…
…01010111000111
3101200112122122100
421020331113013
5303223442211
623114403143
73541253253
oct1110752707
9350478570
10153343431
117961620a
12434304b3
13259cc977
1416519263
15d6e0156
hex923d5c7

153343431 has 6 divisors (see below), whose sum is σ = 221496080. Its totient is φ = 102228948.

The previous prime is 153343427. The next prime is 153343439. The reversal of 153343431 is 134343351.

It is not a de Polignac number, because 153343431 - 22 = 153343427 is a prime.

It is a super-2 number, since 2×1533434312 = 47028415661703522, 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 = 153343395 and 153343404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153343439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8519071 + ... + 8519088.

Almost surely, 2153343431 is an apocalyptic number.

153343431 is a deficient number, since it is larger than the sum of its proper divisors (68152649).

153343431 is a wasteful number, since it uses less digits than its factorization.

153343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17038165 (or 17038162 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 153343431 is about 12383.1914706993. The cubic root of 153343431 is about 535.2480068307.

Adding to 153343431 its reverse (134343351), we get a palindrome (287686782).

The spelling of 153343431 in words is "one hundred fifty-three million, three hundred forty-three thousand, four hundred thirty-one".

Divisors: 1 3 9 17038159 51114477 153343431