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153190309 = 413736349
BaseRepresentation
bin10010010000101…
…11111110100101
3101200020212121011
421020113332211
5303204042214
623111222221
73540044656
oct1110277645
9350225534
10153190309
1179521168
1243377971
132597806c
14164b952d
15d6aeac4
hex9217fa5

153190309 has 4 divisors (see below), whose sum is σ = 156926700. Its totient is φ = 149453920.

The previous prime is 153190291. The next prime is 153190319. The reversal of 153190309 is 903091351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 903091351 = 2234049737.

It can be written as a sum of positive squares in 2 ways, for example, as 85045284 + 68145025 = 9222^2 + 8255^2 .

It is a cyclic number.

It is not a de Polignac number, because 153190309 - 27 = 153190181 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 (153190319) 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, 1868134 + ... + 1868215.

It is an arithmetic number, because the mean of its divisors is an integer number (39231675).

Almost surely, 2153190309 is an apocalyptic number.

It is an amenable number.

153190309 is a deficient number, since it is larger than the sum of its proper divisors (3736391).

153190309 is an equidigital number, since it uses as much as digits as its factorization.

153190309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736390.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 153190309 is about 12377.0072715499. The cubic root of 153190309 is about 535.0697891315.

The spelling of 153190309 in words is "one hundred fifty-three million, one hundred ninety thousand, three hundred nine".

Divisors: 1 41 3736349 153190309