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52140333 = 3723107951
BaseRepresentation
bin1100011011100…
…1100100101101
310122010000002110
43012321210231
5101321442313
65101314233
71202120430
oct306714455
9118100073
1052140333
1127482893
1215565979
13aa5768b
146cd3817
15489dec3
hex31b992d

52140333 has 16 divisors (see below), whose sum is σ = 82907136. Its totient is φ = 28498800.

The previous prime is 52140329. The next prime is 52140337. The reversal of 52140333 is 33304125.

It is an interprime number because it is at equal distance from previous prime (52140329) and next prime (52140337).

It is not a de Polignac number, because 52140333 - 22 = 52140329 is a prime.

It is a super-2 number, since 2×521403332 = 5437228650701778, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52140337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53493 + ... + 54458.

It is an arithmetic number, because the mean of its divisors is an integer number (5181696).

Almost surely, 252140333 is an apocalyptic number.

It is an amenable number.

52140333 is a deficient number, since it is larger than the sum of its proper divisors (30766803).

52140333 is a wasteful number, since it uses less digits than its factorization.

52140333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107984.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 52140333 is about 7220.8263377539. The cubic root of 52140333 is about 373.5865797864.

Adding to 52140333 its reverse (33304125), we get a palindrome (85444458).

The spelling of 52140333 in words is "fifty-two million, one hundred forty thousand, three hundred thirty-three".

Divisors: 1 3 7 21 23 69 161 483 107951 323853 755657 2266971 2482873 7448619 17380111 52140333