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233142500 = 225493257
BaseRepresentation
bin11011110010101…
…11100011100100
3121020200212101102
431321113203210
5434141030000
635045015232
75530451513
oct1571274344
9536625342
10233142500
1110a66a458
12660b4518
13393bc756
1422d6c67a
15157043d5
hexde578e4

233142500 has 30 divisors (see below), whose sum is σ = 509841486. Its totient is φ = 93256000.

The previous prime is 233142473. The next prime is 233142527. The reversal of 233142500 is 5241332.

It is a happy number.

233142500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (233142473) and next prime (233142527).

It can be written as a sum of positive squares in 5 ways, for example, as 31899904 + 201242596 = 5648^2 + 14186^2 .

It is a super-3 number, since 3×2331425003 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 44129 + ... + 49128.

Almost surely, 2233142500 is an apocalyptic number.

233142500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233142500 is an abundant number, since it is smaller than the sum of its proper divisors (276698986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233142500 is an equidigital number, since it uses as much as digits as its factorization.

233142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93281 (or 93264 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 233142500 is about 15269.0045517054. The cubic root of 233142500 is about 615.4703696601.

Adding to 233142500 its reverse (5241332), we get a palindrome (238383832).

The spelling of 233142500 in words is "two hundred thirty-three million, one hundred forty-two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 93257 186514 373028 466285 932570 1865140 2331425 4662850 9325700 11657125 23314250 46628500 58285625 116571250 233142500