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1530345240 = 233254250959
BaseRepresentation
bin101101100110111…
…0011011100011000
310221122121121000100
41123031303130120
511113232021430
6411504335400
752631501634
oct13315633430
93848547010
101530345240
11715927036
12368614560
131b5088438
14107361dc4
158e540960
hex5b373718

1530345240 has 48 divisors (see below), whose sum is σ = 4973623200. Its totient is φ = 408091968.

The previous prime is 1530345221. The next prime is 1530345259. The reversal of 1530345240 is 425430351.

It is an interprime number because it is at equal distance from previous prime (1530345221) and next prime (1530345259).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2125120 + ... + 2125839.

It is an arithmetic number, because the mean of its divisors is an integer number (103617150).

Almost surely, 21530345240 is an apocalyptic number.

1530345240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530345240 is an abundant number, since it is smaller than the sum of its proper divisors (3443277960).

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

1530345240 is a wasteful number, since it uses less digits than its factorization.

1530345240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250976 (or 4250969 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1530345240 is about 39119.6272988381. The cubic root of 1530345240 is about 1152.3820166786.

Adding to 1530345240 its reverse (425430351), we get a palindrome (1955775591).

The spelling of 1530345240 in words is "one billion, five hundred thirty million, three hundred forty-five thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 4250959 8501918 12752877 17003836 21254795 25505754 34007672 38258631 42509590 51011508 63764385 76517262 85019180 102023016 127528770 153034524 170038360 191293155 255057540 306069048 382586310 510115080 765172620 1530345240