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153213169 = 198063851
BaseRepresentation
bin10010010000111…
…01100011110001
3101200022000221211
421020131203301
5303210310134
623111520121
73540201424
oct1110354361
9350260854
10153213169
117953735a
1243389041
13259855a5
14164c39bb
15d6b6764
hex921d8f1

153213169 has 4 divisors (see below), whose sum is σ = 161277040. Its totient is φ = 145149300.

The previous prime is 153213127. The next prime is 153213209. The reversal of 153213169 is 961312351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-153213169 is a prime.

It is a super-2 number, since 2×1532131692 = 46948550310045122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153213169.

It is not an unprimeable number, because it can be changed into a prime (153213769) 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 3 ways as a sum of consecutive naturals, for example, 4031907 + ... + 4031944.

It is an arithmetic number, because the mean of its divisors is an integer number (40319260).

Almost surely, 2153213169 is an apocalyptic number.

153213169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

153213169 is a deficient number, since it is larger than the sum of its proper divisors (8063871).

153213169 is an equidigital number, since it uses as much as digits as its factorization.

153213169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063870.

The product of its digits is 4860, while the sum is 31.

The square root of 153213169 is about 12377.9307236711. The cubic root of 153213169 is about 535.0964032758.

The spelling of 153213169 in words is "one hundred fifty-three million, two hundred thirteen thousand, one hundred sixty-nine".

Divisors: 1 19 8063851 153213169