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52293187 = 1931471889
BaseRepresentation
bin1100011101111…
…0111001000011
310122101202202201
43013132321003
5101341340222
65104454031
71203325162
oct307367103
9118352681
1052293187
1127577711
121561a317
13aaac11b
146d333d9
1548ce427
hex31dee43

52293187 has 16 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 46897920.

The previous prime is 52293179. The next prime is 52293193. The reversal of 52293187 is 78139225.

It is a cyclic number.

It is not a de Polignac number, because 52293187 - 23 = 52293179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52293167) 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, 26739 + ... + 28627.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 252293187 is an apocalyptic number.

52293187 is a deficient number, since it is larger than the sum of its proper divisors (5767613).

52293187 is a wasteful number, since it uses less digits than its factorization.

52293187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986.

The product of its digits is 30240, while the sum is 37.

The square root of 52293187 is about 7231.4028376242. The cubic root of 52293187 is about 373.9512909961.

The spelling of 52293187 in words is "fifty-two million, two hundred ninety-three thousand, one hundred eighty-seven".

Divisors: 1 19 31 47 589 893 1457 1889 27683 35891 58559 88783 1112621 1686877 2752273 52293187