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152536869 = 3217996973
BaseRepresentation
bin10010001011110…
…00011100100101
3101122000200020200
421011320130211
5303022134434
623045221113
73531353622
oct1105703445
9348020220
10152536869
1179115231
1243101799
13257a9804
1416389349
15d5d1199
hex9178725

152536869 has 12 divisors (see below), whose sum is σ = 233291916. Its totient is φ = 95709312.

The previous prime is 152536859. The next prime is 152536871. The reversal of 152536869 is 968635251.

152536869 is a `hidden beast` number, since 1 + 52 + 536 + 8 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 106812225 = 6762^2 + 10335^2 .

It is not a de Polignac number, because 152536869 - 25 = 152536837 is a prime.

It is a super-2 number, since 2×1525368692 = 46534992808646322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152536849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498334 + ... + 498639.

It is an arithmetic number, because the mean of its divisors is an integer number (19440993).

Almost surely, 2152536869 is an apocalyptic number.

It is an amenable number.

152536869 is a deficient number, since it is larger than the sum of its proper divisors (80755047).

152536869 is a wasteful number, since it uses less digits than its factorization.

152536869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996996 (or 996993 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 152536869 is about 12350.5817271900. The cubic root of 152536869 is about 534.3079169304.

It can be divided in two parts, 15253 and 6869, that added together give a palindrome (22122).

The spelling of 152536869 in words is "one hundred fifty-two million, five hundred thirty-six thousand, eight hundred sixty-nine".

Divisors: 1 3 9 17 51 153 996973 2990919 8972757 16948541 50845623 152536869