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3102030240 = 253523299689
BaseRepresentation
bin1011100011100101…
…0011100110100000
322000012000110111220
42320321103212200
522323104431430
61231451135040
7136604551641
oct27071234640
98005013456
103102030240
111352019261
12726a44480
133a588916a
14215da56c8
151324ea110
hexb8e539a0

3102030240 has 192 divisors, whose sum is σ = 10548921600. Its totient is φ = 763879424.

The previous prime is 3102030203. The next prime is 3102030241. The reversal of 3102030240 is 420302013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (3102030241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315316 + ... + 325004.

It is an arithmetic number, because the mean of its divisors is an integer number (54942300).

Almost surely, 23102030240 is an apocalyptic number.

3102030240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5274460800).

3102030240 is an abundant number, since it is smaller than the sum of its proper divisors (7446891360).

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

3102030240 is a wasteful number, since it uses less digits than its factorization.

3102030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9759 (or 9751 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3102030240 is about 55695.8727375737. The cubic root of 3102030240 is about 1458.4179773746.

Adding to 3102030240 its reverse (420302013), we get a palindrome (3522332253).

The spelling of 3102030240 in words is "three billion, one hundred two million, thirty thousand, two hundred forty".