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152452431 = 3216939159
BaseRepresentation
bin10010001011000…
…11110101001111
3101121212101102100
421011203311033
5303011434211
623043330143
73530552505
oct1105436517
9347771370
10152452431
117906784a
1243080953
132577a251
1416366675
15d5b6156
hex9163d4f

152452431 has 6 divisors (see below), whose sum is σ = 220209080. Its totient is φ = 101634948.

The previous prime is 152452411. The next prime is 152452439. The reversal of 152452431 is 134254251.

It is not a de Polignac number, because 152452431 - 211 = 152450383 is a prime.

It is a super-2 number, since 2×1524524312 = 46483487435619522, 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 = 152452395 and 152452404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152452439) 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, 8469571 + ... + 8469588.

Almost surely, 2152452431 is an apocalyptic number.

152452431 is a deficient number, since it is larger than the sum of its proper divisors (67756649).

152452431 is a wasteful number, since it uses less digits than its factorization.

152452431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16939165 (or 16939162 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 152452431 is about 12347.1628724983. The cubic root of 152452431 is about 534.2093085972.

The spelling of 152452431 in words is "one hundred fifty-two million, four hundred fifty-two thousand, four hundred thirty-one".

Divisors: 1 3 9 16939159 50817477 152452431