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53137956 = 2234428163
BaseRepresentation
bin1100101010110…
…1001000100100
310200222200120110
43022231020210
5102100403311
65134533020
71213444104
oct312551044
9120880513
1053137956
1127aa4373
1215967170
13b0167a1
1470b3204
1549e98a6
hex32ad224

53137956 has 12 divisors (see below), whose sum is σ = 123988592. Its totient is φ = 17712648.

The previous prime is 53137949. The next prime is 53137961. The reversal of 53137956 is 65973135.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214070 + ... + 2214093.

Almost surely, 253137956 is an apocalyptic number.

It is an amenable number.

53137956 is an abundant number, since it is smaller than the sum of its proper divisors (70850636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53137956 is a wasteful number, since it uses less digits than its factorization.

53137956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428170 (or 4428168 counting only the distinct ones).

The product of its digits is 85050, while the sum is 39.

The square root of 53137956 is about 7289.5785886428. The cubic root of 53137956 is about 375.9542063590.

The spelling of 53137956 in words is "fifty-three million, one hundred thirty-seven thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 12 4428163 8856326 13284489 17712652 26568978 53137956