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530901840 = 243571729641
BaseRepresentation
bin11111101001001…
…110101101010000
31100222222121102010
4133221032231100
52041402324330
6124403022520
716104406530
oct3751165520
91328877363
10530901840
11252753457
1212996aa40
1385cb4701
145071b4c0
153191e3b0
hex1fa4eb50

530901840 has 320 divisors, whose sum is σ = 2063439360. Its totient is φ = 110100480.

The previous prime is 530901829. The next prime is 530901841. The reversal of 530901840 is 48109035.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 530901798 and 530901807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530901841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 827920 + ... + 828560.

It is an arithmetic number, because the mean of its divisors is an integer number (6448248).

Almost surely, 2530901840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530901840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031719680).

530901840 is an abundant number, since it is smaller than the sum of its proper divisors (1532537520).

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

530901840 is a wasteful number, since it uses less digits than its factorization.

530901840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 530901840 is about 23041.3072545808. The cubic root of 530901840 is about 809.7259856560.

The spelling of 530901840 in words is "five hundred thirty million, nine hundred one thousand, eight hundred forty".