Search a number
-
+
153097213 = 257595709
BaseRepresentation
bin10010010000000…
…01001111111101
3101200002010220011
421020001033331
5303143102323
623105223221
73536206363
oct1110011775
9350063804
10153097213
1179468225
1243331b11
1325944889
1416493633
15d69220d
hex92013fd

153097213 has 4 divisors (see below), whose sum is σ = 153693180. Its totient is φ = 152501248.

The previous prime is 153097207. The next prime is 153097277. The reversal of 153097213 is 312790351.

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 150479289 + 2617924 = 12267^2 + 1618^2 .

It is a cyclic number.

It is not a de Polignac number, because 153097213 - 221 = 151000061 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 (153092213) 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, 297598 + ... + 298111.

It is an arithmetic number, because the mean of its divisors is an integer number (38423295).

Almost surely, 2153097213 is an apocalyptic number.

It is an amenable number.

153097213 is a deficient number, since it is larger than the sum of its proper divisors (595967).

153097213 is an equidigital number, since it uses as much as digits as its factorization.

153097213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595966.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 153097213 is about 12373.2458554738. The cubic root of 153097213 is about 534.9613772450.

It can be divided in two parts, 15309 and 7213, that added together give a palindrome (22522).

The spelling of 153097213 in words is "one hundred fifty-three million, ninety-seven thousand, two hundred thirteen".

Divisors: 1 257 595709 153097213