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530872920 = 233351941631
BaseRepresentation
bin11111101001000…
…111101001011000
31100222221010202000
4133221013221120
52041400413140
6124402241000
716104226314
oct3751075130
91328833660
10530872920
11252733756
12129956160
1385ca44b6
1450710b44
1531915a30
hex1fa47a58

530872920 has 256 divisors, whose sum is σ = 1911168000. Its totient is φ = 130636800.

The previous prime is 530872919. The next prime is 530872921. The reversal of 530872920 is 29278035.

It is a happy number.

530872920 is a `hidden beast` number, since 530 + 87 + 29 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (530872919) and next prime (530872921).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530872921) 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, 841005 + ... + 841635.

It is an arithmetic number, because the mean of its divisors is an integer number (7465500).

Almost surely, 2530872920 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 530872920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955584000).

530872920 is an abundant number, since it is smaller than the sum of its proper divisors (1380295080).

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

530872920 is a wasteful number, since it uses less digits than its factorization.

530872920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 530872920 is about 23040.6796774748. The cubic root of 530872920 is about 809.7112825609.

The spelling of 530872920 in words is "five hundred thirty million, eight hundred seventy-two thousand, nine hundred twenty".