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53740233 = 331990379
BaseRepresentation
bin1100110100000…
…0001011001001
310202010021202000
43031000023021
5102224141413
65155501213
71221533031
oct315001311
9122107660
1053740233
1128375918
1215bb7809
13b197971
1471cc8c1
154ab8073
hex33402c9

53740233 has 8 divisors (see below), whose sum is σ = 79615200. Its totient is φ = 35826804.

The previous prime is 53740171. The next prime is 53740241. The reversal of 53740233 is 33204735.

It is not a de Polignac number, because 53740233 - 216 = 53674697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1990379 = 53740233 / (5 + 3 + 7 + 4 + 0 + 2 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 53740197 and 53740206.

It is not an unprimeable number, because it can be changed into a prime (53740273) 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, 995163 + ... + 995216.

It is an arithmetic number, because the mean of its divisors is an integer number (9951900).

Almost surely, 253740233 is an apocalyptic number.

It is an amenable number.

53740233 is a deficient number, since it is larger than the sum of its proper divisors (25874967).

53740233 is a wasteful number, since it uses less digits than its factorization.

53740233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990388 (or 1990382 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 53740233 is about 7330.7730151738. The cubic root of 53740233 is about 377.3692554844.

Adding to 53740233 its reverse (33204735), we get a palindrome (86944968).

The spelling of 53740233 in words is "fifty-three million, seven hundred forty thousand, two hundred thirty-three".

Divisors: 1 3 9 27 1990379 5971137 17913411 53740233