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235740020 = 22517693353
BaseRepresentation
bin11100000110100…
…01101101110100
3121102120211111212
432003101231310
5440322140040
635220420552
75561520455
oct1603215564
9542524455
10235740020
11111083a6a
1266b47758
1339abbb49
142344712c
1515a68d65
hexe0d1b74

235740020 has 24 divisors (see below), whose sum is σ = 524175624. Its totient is φ = 88749056.

The previous prime is 235740017. The next prime is 235740023. The reversal of 235740020 is 20047532.

235740020 is digitally balanced in base 2, 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 (235740017) and next prime (235740023).

It can be written as a sum of positive squares in 4 ways, for example, as 60124516 + 175615504 = 7754^2 + 13252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235740023) 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, 346337 + ... + 347016.

It is an arithmetic number, because the mean of its divisors is an integer number (21840651).

Almost surely, 2235740020 is an apocalyptic number.

235740020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235740020 is an abundant number, since it is smaller than the sum of its proper divisors (288435604).

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

235740020 is a wasteful number, since it uses less digits than its factorization.

235740020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693379 (or 693377 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 235740020 is about 15353.8275358296. The cubic root of 235740020 is about 617.7476548187.

Adding to 235740020 its reverse (20047532), we get a palindrome (255787552).

The spelling of 235740020 in words is "two hundred thirty-five million, seven hundred forty thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 693353 1386706 2773412 3466765 6933530 11787001 13867060 23574002 47148004 58935005 117870010 235740020