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2027858420 = 225714484703
BaseRepresentation
bin111100011011110…
…1010100111110100
312020022202212210102
41320313222213310
513123112432140
6533120013232
7101152340450
oct17067524764
95208685712
102027858420
11950745055
12487161218
1326417c633
1415346b660
15bd066e15
hex78dea9f4

2027858420 has 24 divisors (see below), whose sum is σ = 4866860544. Its totient is φ = 695265696.

The previous prime is 2027858389. The next prime is 2027858423. The reversal of 2027858420 is 248587202.

It is a happy number.

It is a super-2 number, since 2×20278584202 = 8224419543129792800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027858423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7242212 + ... + 7242491.

It is an arithmetic number, because the mean of its divisors is an integer number (202785856).

Almost surely, 22027858420 is an apocalyptic number.

2027858420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2027858420 is an abundant number, since it is smaller than the sum of its proper divisors (2839002124).

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

2027858420 is a wasteful number, since it uses less digits than its factorization.

2027858420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14484719 (or 14484717 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 2027858420 is about 45031.7490222176. The cubic root of 2027858420 is about 1265.7439982771.

The spelling of 2027858420 in words is "two billion, twenty-seven million, eight hundred fifty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 14484703 28969406 57938812 72423515 101392921 144847030 202785842 289694060 405571684 506964605 1013929210 2027858420