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1530345037 = 13239349193
BaseRepresentation
bin101101100110111…
…0011011001001101
310221122121120201211
41123031303121031
511113232020122
6411504334421
752631501224
oct13315633115
93848546654
101530345037
11715926971
12368614411
131b5088310
14107361cbb
158e540877
hex5b37364d

1530345037 has 8 divisors (see below), whose sum is σ = 1648786104. Its totient is φ = 1412007168.

The previous prime is 1530345029. The next prime is 1530345077. The reversal of 1530345037 is 7305430351.

It can be written as a sum of positive squares in 4 ways, for example, as 10982596 + 1519362441 = 3314^2 + 38979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1530345037 - 23 = 1530345029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530345007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6513 + ... + 55705.

It is an arithmetic number, because the mean of its divisors is an integer number (206098263).

Almost surely, 21530345037 is an apocalyptic number.

It is an amenable number.

1530345037 is a deficient number, since it is larger than the sum of its proper divisors (118441067).

1530345037 is a wasteful number, since it uses less digits than its factorization.

1530345037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51599.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 1530345037 is about 39119.6247042325. The cubic root of 1530345037 is about 1152.3819657242.

Adding to 1530345037 its reverse (7305430351), we get a palindrome (8835775388).

The spelling of 1530345037 in words is "one billion, five hundred thirty million, three hundred forty-five thousand, thirty-seven".

Divisors: 1 13 2393 31109 49193 639509 117718849 1530345037