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1530922069 = 3114922579
BaseRepresentation
bin101101101000000…
…0000010001010101
310221200200220021101
41123100000101111
511113404001234
6411524550101
752636423435
oct13320002125
93850626241
101530922069
11716190456
12368852331
131b522ab61
141074722c5
158e606814
hex5b400455

1530922069 has 4 divisors (see below), whose sum is σ = 1535844960. Its totient is φ = 1525999180.

The previous prime is 1530922051. The next prime is 1530922087. The reversal of 1530922069 is 9602290351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9602290351 = 57171679603.

It is an interprime number because it is at equal distance from previous prime (1530922051) and next prime (1530922087).

It is a cyclic number.

It is not a de Polignac number, because 1530922069 - 213 = 1530913877 is a prime.

It is a super-2 number, since 2×15309220692 = 4687444762702481522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530922009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2460979 + ... + 2461600.

It is an arithmetic number, because the mean of its divisors is an integer number (383961240).

Almost surely, 21530922069 is an apocalyptic number.

It is an amenable number.

1530922069 is a deficient number, since it is larger than the sum of its proper divisors (4922891).

1530922069 is an equidigital number, since it uses as much as digits as its factorization.

1530922069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922890.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 1530922069 is about 39126.9992332660. Note that the first 3 decimals coincide. The cubic root of 1530922069 is about 1152.5267865969.

The spelling of 1530922069 in words is "one billion, five hundred thirty million, nine hundred twenty-two thousand, sixty-nine".

Divisors: 1 311 4922579 1530922069