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3100020480 = 28325594561
BaseRepresentation
bin1011100011000110…
…1000111100000000
322000001020100122100
42320301220330000
522322101123410
61231340110400
7136551511404
oct27061507400
98001210570
103100020480
1113509762a7
12726235400
133a533445b
14215a01104
1513224e8c0
hexb8c68f00

3100020480 has 216 divisors, whose sum is σ = 10909931760. Its totient is φ = 812482560.

The previous prime is 3100020479. The next prime is 3100020481. The reversal of 3100020480 is 840200013.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3100020479) and next prime (3100020481).

It is a super-2 number, since 2×31000204802 = 19220253952838860800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100020481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677400 + ... + 681960.

Almost surely, 23100020480 is an apocalyptic number.

3100020480 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 3100020480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5454965880).

3100020480 is an abundant number, since it is smaller than the sum of its proper divisors (7809911280).

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

3100020480 is a wasteful number, since it uses less digits than its factorization.

3100020480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4630 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3100020480 is about 55677.8275438257. The cubic root of 3100020480 is about 1458.1029467748.

Adding to 3100020480 its reverse (840200013), we get a palindrome (3940220493).

The spelling of 3100020480 in words is "three billion, one hundred million, twenty thousand, four hundred eighty".