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272001423 = 390667141
BaseRepresentation
bin10000001101100…
…110100110001111
3200221211002210210
4100031212212033
51024113021143
642553533503
76511655031
oct2015464617
9627732723
10272001423
1112a5a0771
1277114293
1344476ab5
14281a5c51
1518d2d033
hex1036698f

272001423 has 4 divisors (see below), whose sum is σ = 362668568. Its totient is φ = 181334280.

The previous prime is 272001413. The next prime is 272001439. The reversal of 272001423 is 324100272.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 272001423 - 28 = 272001167 is a prime.

It is a super-2 number, since 2×2720014232 = 147969548228049858, 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 272001423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272001403) 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, 45333568 + ... + 45333573.

It is an arithmetic number, because the mean of its divisors is an integer number (90667142).

Almost surely, 2272001423 is an apocalyptic number.

272001423 is a deficient number, since it is larger than the sum of its proper divisors (90667145).

272001423 is an equidigital number, since it uses as much as digits as its factorization.

272001423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90667144.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 272001423 is about 16492.4656434385. The cubic root of 272001423 is about 647.9234901475.

Adding to 272001423 its reverse (324100272), we get a palindrome (596101695).

The spelling of 272001423 in words is "two hundred seventy-two million, one thousand, four hundred twenty-three".

Divisors: 1 3 90667141 272001423