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152403253 = 509299417
BaseRepresentation
bin10010001010101…
…11110100110101
3101121202212221221
421011113310311
5303003401003
623042310341
73530256232
oct1105276465
9347685857
10152403253
1179033902
12430583b1
1325760a52
1416352789
15d5a67bd
hex9157d35

152403253 has 4 divisors (see below), whose sum is σ = 152703180. Its totient is φ = 152103328.

The previous prime is 152403239. The next prime is 152403257. The reversal of 152403253 is 352304251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136258929 + 16144324 = 11673^2 + 4018^2 .

It is a cyclic number.

It is not a de Polignac number, because 152403253 - 217 = 152272181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152403257) 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, 149200 + ... + 150217.

It is an arithmetic number, because the mean of its divisors is an integer number (38175795).

Almost surely, 2152403253 is an apocalyptic number.

It is an amenable number.

152403253 is a deficient number, since it is larger than the sum of its proper divisors (299927).

152403253 is an equidigital number, since it uses as much as digits as its factorization.

152403253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299926.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 152403253 is about 12345.1712422307. The cubic root of 152403253 is about 534.1518607963.

The spelling of 152403253 in words is "one hundred fifty-two million, four hundred three thousand, two hundred fifty-three".

Divisors: 1 509 299417 152403253