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530890623 = 322313918451
BaseRepresentation
bin11111101001001…
…011111101111111
31100222222001000200
4133221023331333
52041401444443
6124402454543
716104332034
oct3751137577
91328861020
10530890623
11252745a8a
12129964453
1385cac583
145071738b
153191add3
hex1fa4bf7f

530890623 has 24 divisors (see below), whose sum is σ = 805983360. Its totient is φ = 336085200.

The previous prime is 530890583. The next prime is 530890627. The reversal of 530890623 is 326098035.

It is not a de Polignac number, because 530890623 - 212 = 530886527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530890627) 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, 19548 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (33582640).

Almost surely, 2530890623 is an apocalyptic number.

530890623 is a deficient number, since it is larger than the sum of its proper divisors (275092737).

530890623 is a wasteful number, since it uses less digits than its factorization.

530890623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18619 (or 18616 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 530890623 is about 23041.0638426267. The cubic root of 530890623 is about 809.7202829318.

The spelling of 530890623 in words is "five hundred thirty million, eight hundred ninety thousand, six hundred twenty-three".

Divisors: 1 3 9 23 69 139 207 417 1251 3197 9591 18451 28773 55353 166059 424373 1273119 2564689 3819357 7694067 23082201 58987847 176963541 530890623