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202434023 = 1140145893
BaseRepresentation
bin11000001000011…
…10010111100111
3112002220201021102
430010032113213
5403310342043
632030510315
75005442441
oct1404162747
9462821242
10202434023
11a42a5750
125796539b
1332c2a15c
141cc57491
1512b8a6b8
hexc10e5e7

202434023 has 8 divisors (see below), whose sum is σ = 221392656. Its totient is φ = 183568000.

The previous prime is 202433983. The next prime is 202434031. The reversal of 202434023 is 320434202.

202434023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 202434023 - 28 = 202433767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202433986 and 202434004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202434223) 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, 18536 + ... + 27357.

It is an arithmetic number, because the mean of its divisors is an integer number (27674082).

Almost surely, 2202434023 is an apocalyptic number.

202434023 is a deficient number, since it is larger than the sum of its proper divisors (18958633).

202434023 is a wasteful number, since it uses less digits than its factorization.

202434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46305.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 202434023 is about 14227.9310864229. The cubic root of 202434023 is about 587.1663636373.

Adding to 202434023 its reverse (320434202), we get a palindrome (522868225).

The spelling of 202434023 in words is "two hundred two million, four hundred thirty-four thousand, twenty-three".

Divisors: 1 11 401 4411 45893 504823 18403093 202434023