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233144023 = 737389293
BaseRepresentation
bin11011110010101…
…11111011010111
3121020200221110211
431321113323113
5434141102043
635045030251
75530456120
oct1571277327
9536627424
10233144023
1110a670612
12660b5387
13393c0358
1422d6d047
1515704a9d
hexde57ed7

233144023 has 8 divisors (see below), whose sum is σ = 267167648. Its totient is φ = 199299744.

The previous prime is 233143991. The next prime is 233144027. The reversal of 233144023 is 320441332.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 233144023 - 25 = 233143991 is a prime.

It is a super-2 number, since 2×2331440232 = 108712270921249058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233143985 and 233144003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233144027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42036 + ... + 47257.

It is an arithmetic number, because the mean of its divisors is an integer number (33395956).

Almost surely, 2233144023 is an apocalyptic number.

233144023 is a deficient number, since it is larger than the sum of its proper divisors (34023625).

233144023 is an equidigital number, since it uses as much as digits as its factorization.

233144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89673.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 233144023 is about 15269.0544238993. The cubic root of 233144023 is about 615.4717098409.

Adding to 233144023 its reverse (320441332), we get a palindrome (553585355).

The spelling of 233144023 in words is "two hundred thirty-three million, one hundred forty-four thousand, twenty-three".

Divisors: 1 7 373 2611 89293 625051 33306289 233144023