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235421452 = 2278407909
BaseRepresentation
bin11100000100000…
…11111100001100
3121101222122112001
432002003330030
5440231441302
635205522044
75556022630
oct1602037414
9541878461
10235421452
11110986692
1266a13324
1339a09b46
14233a2dc0
1515a04787
hexe083f0c

235421452 has 12 divisors (see below), whose sum is σ = 470842960. Its totient is φ = 100894896.

The previous prime is 235421447. The next prime is 235421479. The reversal of 235421452 is 254124532.

235421452 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 8407909 = 235421452 / (2 + 3 + 5 + 4 + 2 + 1 + 4 + 5 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 235421452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4203927 + ... + 4203982.

Almost surely, 2235421452 is an apocalyptic number.

It is an amenable number.

235421452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

235421452 is a wasteful number, since it uses less digits than its factorization.

235421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8407920 (or 8407918 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 235421452 is about 15343.4498076541. The cubic root of 235421452 is about 617.4692643162.

Adding to 235421452 its reverse (254124532), we get a palindrome (489545984).

The spelling of 235421452 in words is "two hundred thirty-five million, four hundred twenty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 8407909 16815818 33631636 58855363 117710726 235421452