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53026590 = 2351767553
BaseRepresentation
bin1100101001000…
…1111100011110
310200210000210210
43022101330132
5102033322330
65132313250
71212501321
oct312217436
9120700723
1053026590
1127a28731
1215912826
13aca7ba6
1470847b8
1549c68b0
hex3291f1e

53026590 has 16 divisors (see below), whose sum is σ = 127263888. Its totient is φ = 14140416.

The previous prime is 53026583. The next prime is 53026591. The reversal of 53026590 is 9562035.

It is a super-3 number, since 3×530265903 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1767553 = 53026590 / (5 + 3 + 0 + 2 + 6 + 5 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53026591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883747 + ... + 883806.

It is an arithmetic number, because the mean of its divisors is an integer number (7953993).

Almost surely, 253026590 is an apocalyptic number.

53026590 is an abundant number, since it is smaller than the sum of its proper divisors (74237298).

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

53026590 is a wasteful number, since it uses less digits than its factorization.

53026590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767563.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 53026590 is about 7281.9358689843. The cubic root of 53026590 is about 375.6913823024.

The spelling of 53026590 in words is "fifty-three million, twenty-six thousand, five hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1767553 3535106 5302659 8837765 10605318 17675530 26513295 53026590