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2055018240 = 283251116217
BaseRepresentation
bin111101001111101…
…0001011100000000
312022012212202001200
41322133101130000
513202041040430
6535530101200
7101632236552
oct17237213400
95265782050
102055018240
11965005690
1249427a800
1326999b932
14156cdb4d2
15c062e460
hex7a7d1700

2055018240 has 216 divisors, whose sum is σ = 7757004528. Its totient is φ = 498155520.

The previous prime is 2055018223. The next prime is 2055018247. The reversal of 2055018240 is 428105502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055018247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118612 + ... + 134828.

It is an arithmetic number, because the mean of its divisors is an integer number (35912058).

Almost surely, 22055018240 is an apocalyptic number.

2055018240 is a gapful number since it is divisible by the number (20) 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 2055018240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3878502264).

2055018240 is an abundant number, since it is smaller than the sum of its proper divisors (5701986288).

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

2055018240 is a wasteful number, since it uses less digits than its factorization.

2055018240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16255 (or 16238 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 2055018240 is about 45332.3090080353. The cubic root of 2055018240 is about 1271.3698076856.

The spelling of 2055018240 in words is "two billion, fifty-five million, eighteen thousand, two hundred forty".