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2147225240 = 23553680631
BaseRepresentation
bin111111111111100…
…0000111010011000
312112122101100021202
41333333000322120
513344142201430
6553022253332
7104132053616
oct17777007230
95478340252
102147225240
11a02064116
124bb127248
13282b142a4
141652606b6
15c8794d45
hex7ffc0e98

2147225240 has 16 divisors (see below), whose sum is σ = 4831256880. Its totient is φ = 858890080.

The previous prime is 2147225203. The next prime is 2147225347. The reversal of 2147225240 is 425227412.

It is a super-2 number, since 2×21472252402 = 9221152462586115200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26840276 + ... + 26840355.

It is an arithmetic number, because the mean of its divisors is an integer number (301953555).

Almost surely, 22147225240 is an apocalyptic number.

2147225240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2147225240 is an abundant number, since it is smaller than the sum of its proper divisors (2684031640).

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

2147225240 is a wasteful number, since it uses less digits than its factorization.

2147225240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53680642 (or 53680638 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 2147225240 is about 46338.1618107581. The cubic root of 2147225240 is about 1290.1074044740.

The spelling of 2147225240 in words is "two billion, one hundred forty-seven million, two hundred twenty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 53680631 107361262 214722524 268403155 429445048 536806310 1073612620 2147225240