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53212982 = 2191139301
BaseRepresentation
bin1100101011111…
…1011100110110
310201010111111012
43022333130312
5102110303412
65140312222
71214205614
oct312773466
9121114435
1053212982
1128045779
12159a2672
13b041994
1470d26b4
154a11c22
hex32bf736

53212982 has 8 divisors (see below), whose sum is σ = 80237952. Its totient is φ = 26467000.

The previous prime is 53212981. The next prime is 53212987. The reversal of 53212982 is 28921235.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53212981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69269 + ... + 70032.

It is an arithmetic number, because the mean of its divisors is an integer number (10029744).

Almost surely, 253212982 is an apocalyptic number.

53212982 is a deficient number, since it is larger than the sum of its proper divisors (27024970).

53212982 is a wasteful number, since it uses less digits than its factorization.

53212982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139494.

The product of its digits is 8640, while the sum is 32.

The square root of 53212982 is about 7294.7228871287. The cubic root of 53212982 is about 376.1310609583.

The spelling of 53212982 in words is "fifty-three million, two hundred twelve thousand, nine hundred eighty-two".

Divisors: 1 2 191 382 139301 278602 26606491 53212982