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1530606020 = 22576530301
BaseRepresentation
bin101101100111011…
…0011000111000100
310221200002211201212
41123032303013010
511113313343040
6411514110552
752633636136
oct13316630704
93850084655
101530606020
11715a94a59
1236871b458
131b514a048
141073cd056
158e592d65
hex5b3b31c4

1530606020 has 12 divisors (see below), whose sum is σ = 3214272684. Its totient is φ = 612242400.

The previous prime is 1530606019. The next prime is 1530606053. The reversal of 1530606020 is 206060351.

It can be written as a sum of positive squares in 2 ways, for example, as 586027264 + 944578756 = 24208^2 + 30734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38265131 + ... + 38265170.

It is an arithmetic number, because the mean of its divisors is an integer number (267856057).

Almost surely, 21530606020 is an apocalyptic number.

1530606020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530606020 is an abundant number, since it is smaller than the sum of its proper divisors (1683666664).

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

1530606020 is a wasteful number, since it uses less digits than its factorization.

1530606020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76530310 (or 76530308 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1530606020 is about 39122.9602663193. The cubic root of 1530606020 is about 1152.4474705614.

Adding to 1530606020 its reverse (206060351), we get a palindrome (1736666371).

The spelling of 1530606020 in words is "one billion, five hundred thirty million, six hundred six thousand, twenty".

Divisors: 1 2 4 5 10 20 76530301 153060602 306121204 382651505 765303010 1530606020