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53207211 = 3234379227
BaseRepresentation
bin1100101011111…
…0000010101011
310201010012120110
43022332002223
5102110112321
65140225403
71214153031
oct312760253
9121105513
1053207211
1128041402
121599b263
13b03c175
1470d0551
154a10176
hex32be0ab

53207211 has 32 divisors (see below), whose sum is σ = 77045760. Its totient is φ = 32576544.

The previous prime is 53207197. The next prime is 53207251. The reversal of 53207211 is 11270235.

It is not a de Polignac number, because 53207211 - 210 = 53206187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53207251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234280 + ... + 234506.

It is an arithmetic number, because the mean of its divisors is an integer number (2407680).

Almost surely, 253207211 is an apocalyptic number.

53207211 is a deficient number, since it is larger than the sum of its proper divisors (23838549).

53207211 is a wasteful number, since it uses less digits than its factorization.

53207211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 53207211 is about 7294.3273164837. The cubic root of 53207211 is about 376.1174632061.

Adding to 53207211 its reverse (11270235), we get a palindrome (64477446).

The spelling of 53207211 in words is "fifty-three million, two hundred seven thousand, two hundred eleven".

Divisors: 1 3 23 43 69 79 129 227 237 681 989 1817 2967 3397 5221 5451 9761 10191 15663 17933 29283 53799 78131 224503 234393 412459 673509 771119 1237377 2313357 17735737 53207211