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52041213 = 327826051
BaseRepresentation
bin1100011010000…
…1010111111101
310121220222010100
43012201113331
5101310304323
65055231313
71201225440
oct306412775
9117828110
1052041213
1127415374
1215518539
13aa21523
146ca9657
15487e943
hex31a15fd

52041213 has 12 divisors (see below), whose sum is σ = 85909408. Its totient is φ = 29737800.

The previous prime is 52041211. The next prime is 52041221. The reversal of 52041213 is 31214025.

It is not a de Polignac number, because 52041213 - 21 = 52041211 is a prime.

It is a super-2 number, since 2×520412132 = 5416575701022738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52041211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412963 + ... + 413088.

Almost surely, 252041213 is an apocalyptic number.

It is an amenable number.

52041213 is a deficient number, since it is larger than the sum of its proper divisors (33868195).

52041213 is a wasteful number, since it uses less digits than its factorization.

52041213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826064 (or 826061 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52041213 is about 7213.9595923459. The cubic root of 52041213 is about 373.3496973234.

Adding to 52041213 its reverse (31214025), we get a palindrome (83255238).

The spelling of 52041213 in words is "fifty-two million, forty-one thousand, two hundred thirteen".

Divisors: 1 3 7 9 21 63 826051 2478153 5782357 7434459 17347071 52041213