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2030038890 = 2351110956437
BaseRepresentation
bin111100011111111…
…1110111101101010
312020110212122211120
41320333332331222
513124142221030
6533234440110
7101210021505
oct17077767552
95213778746
102030038890
119519a42a0
12487a33036
13264763c59
1415387813c
15bd348010
hex78ffef6a

2030038890 has 64 divisors (see below), whose sum is σ = 5363867520. Its totient is φ = 487607040.

The previous prime is 2030038873. The next prime is 2030038891. The reversal of 2030038890 is 988300302.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2030038891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7752 + ... + 64188.

It is an arithmetic number, because the mean of its divisors is an integer number (83810430).

Almost surely, 22030038890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2030038890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681933760).

2030038890 is an abundant number, since it is smaller than the sum of its proper divisors (3333828630).

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

2030038890 is a wasteful number, since it uses less digits than its factorization.

2030038890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56567.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2030038890 is about 45055.9528808347. The cubic root of 2030038890 is about 1266.1975026855.

The spelling of 2030038890 in words is "two billion, thirty million, thirty-eight thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 109 110 165 218 327 330 545 654 1090 1199 1635 2398 3270 3597 5995 7194 11990 17985 35970 56437 112874 169311 282185 338622 564370 620807 846555 1241614 1693110 1862421 3104035 3724842 6151633 6208070 9312105 12303266 18454899 18624210 30758165 36909798 61516330 67667963 92274495 135335926 184548990 203003889 338339815 406007778 676679630 1015019445 2030038890