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52840490 = 256478167
BaseRepresentation
bin1100100110010…
…0100000101010
310200102120112012
43021210200222
5102011343430
65124315522
71211064623
oct311444052
9120376465
1052840490
112791092a
1215842ba2
13ac41281
147036a4a
15498b695
hex326482a

52840490 has 16 divisors (see below), whose sum is σ = 95271552. Its totient is φ = 21100944.

The previous prime is 52840483. The next prime is 52840511. The reversal of 52840490 is 9404825.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2387 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (5954472).

Almost surely, 252840490 is an apocalyptic number.

52840490 is a deficient number, since it is larger than the sum of its proper divisors (42431062).

52840490 is a wasteful number, since it uses less digits than its factorization.

52840490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 52840490 is about 7269.1464423273. The cubic root of 52840490 is about 375.2513633248.

The spelling of 52840490 in words is "fifty-two million, eight hundred forty thousand, four hundred ninety".

Divisors: 1 2 5 10 647 1294 3235 6470 8167 16334 40835 81670 5284049 10568098 26420245 52840490