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52990511 = 722989419
BaseRepresentation
bin1100101000100…
…1001000101111
310200201012022112
43022021020233
5102031144021
65131434235
71212261200
oct312111057
9120635275
1052990511
1127a03612
12158b597b
13ac94642
1470755a7
1549bad5b
hex328922f

52990511 has 24 divisors (see below), whose sum is σ = 64638000. Its totient is φ = 43257984.

The previous prime is 52990507. The next prime is 52990519. The reversal of 52990511 is 11509925.

It is not a de Polignac number, because 52990511 - 22 = 52990507 is a prime.

It is a super-2 number, since 2×529905112 = 5615988512082242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52990519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126260 + ... + 126678.

It is an arithmetic number, because the mean of its divisors is an integer number (2693250).

Almost surely, 252990511 is an apocalyptic number.

52990511 is a deficient number, since it is larger than the sum of its proper divisors (11647489).

52990511 is a wasteful number, since it uses less digits than its factorization.

52990511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 52990511 is about 7279.4581529122. The cubic root of 52990511 is about 375.6061568542.

The spelling of 52990511 in words is "fifty-two million, nine hundred ninety thousand, five hundred eleven".

Divisors: 1 7 29 49 89 203 419 623 1421 2581 2933 4361 12151 18067 20531 37291 85057 126469 261037 595399 1081439 1827259 7570073 52990511