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235420147 = 578340709
BaseRepresentation
bin11100000100000…
…11100111110011
3121101222120201201
432002003213303
5440231421042
635205512031
75556016054
oct1602034763
9541876651
10235420147
11110985706
1266a12617
1339a09381
14233a272b
1515a041b7
hexe0839f3

235420147 has 4 divisors (see below), whose sum is σ = 235466640. Its totient is φ = 235373656.

The previous prime is 235420123. The next prime is 235420153. The reversal of 235420147 is 741024532.

235420147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-235420147 is a prime.

It is a super-2 number, since 2×2354201472 = 110845291227003218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235420247) 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, 14572 + ... + 26137.

It is an arithmetic number, because the mean of its divisors is an integer number (58866660).

Almost surely, 2235420147 is an apocalyptic number.

235420147 is a deficient number, since it is larger than the sum of its proper divisors (46493).

235420147 is an equidigital number, since it uses as much as digits as its factorization.

235420147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46492.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 235420147 is about 15343.4072813049. The cubic root of 235420147 is about 617.4681233852.

Adding to 235420147 its reverse (741024532), we get a palindrome (976444679).

The spelling of 235420147 in words is "two hundred thirty-five million, four hundred twenty thousand, one hundred forty-seven".

Divisors: 1 5783 40709 235420147