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153143252 = 2238285813
BaseRepresentation
bin10010010000011…
…00011111010100
3101200011111001022
421020030133110
5303201041002
623110220312
73536460533
oct1110143724
9350144038
10153143252
1179499879
1243354698
132595c812
14164a631a
15d6a0ba2
hex920c7d4

153143252 has 6 divisors (see below), whose sum is σ = 268000698. Its totient is φ = 76571624.

The previous prime is 153143231. The next prime is 153143257. The reversal of 153143252 is 252341351.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 129367876 + 23775376 = 11374^2 + 4876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153143257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19142903 + ... + 19142910.

It is an arithmetic number, because the mean of its divisors is an integer number (44666783).

Almost surely, 2153143252 is an apocalyptic number.

It is an amenable number.

153143252 is a deficient number, since it is larger than the sum of its proper divisors (114857446).

153143252 is a wasteful number, since it uses less digits than its factorization.

153143252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38285817 (or 38285815 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 153143252 is about 12375.1061409590. The cubic root of 153143252 is about 535.0149959403.

The spelling of 153143252 in words is "one hundred fifty-three million, one hundred forty-three thousand, two hundred fifty-two".

Divisors: 1 2 4 38285813 76571626 153143252