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235124021 = 1173292807
BaseRepresentation
bin11100000001110…
…11010100110101
3121101102112112002
432000323110311
5440142432041
635155305045
75553343526
oct1600732465
9541375462
10235124021
111107a3180
12668ab185
1339934652
142332684d
151599659b
hexe03b535

235124021 has 8 divisors (see below), whose sum is σ = 260013504. Its totient is φ = 210820320.

The previous prime is 235123997. The next prime is 235124039. The reversal of 235124021 is 120421532.

235124021 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-235124021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235123984 and 235124002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235124081) 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, 145601 + ... + 147206.

It is an arithmetic number, because the mean of its divisors is an integer number (32501688).

Almost surely, 2235124021 is an apocalyptic number.

It is an amenable number.

235124021 is a deficient number, since it is larger than the sum of its proper divisors (24889483).

235124021 is a wasteful number, since it uses less digits than its factorization.

235124021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292891.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 235124021 is about 15333.7543021923. The cubic root of 235124021 is about 617.2091182442.

Adding to 235124021 its reverse (120421532), we get a palindrome (355545553).

The spelling of 235124021 in words is "two hundred thirty-five million, one hundred twenty-four thousand, twenty-one".

Divisors: 1 11 73 803 292807 3220877 21374911 235124021