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2021132330 = 25728873319
BaseRepresentation
bin111100001111000…
…0000100000101010
312012212010011022222
41320132000200222
513114402213310
6532315514042
7101041225040
oct17036004052
95185104288
102021132330
119479706a8
12484a58922
13262965cb9
141525da390
15bc689055
hex7878082a

2021132330 has 16 divisors (see below), whose sum is σ = 4157758080. Its totient is φ = 692959632.

The previous prime is 2021132317. The next prime is 2021132341. The reversal of 2021132330 is 332311202.

It is a junction number, because it is equal to n+sod(n) for n = 2021132299 and 2021132308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14436590 + ... + 14436729.

It is an arithmetic number, because the mean of its divisors is an integer number (259859880).

Almost surely, 22021132330 is an apocalyptic number.

2021132330 is an abundant number, since it is smaller than the sum of its proper divisors (2136625750).

2021132330 is a wasteful number, since it uses less digits than its factorization.

2021132330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28873333.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2021132330 is about 44957.0053495559. The cubic root of 2021132330 is about 1264.3430230729.

Adding to 2021132330 its reverse (332311202), we get a palindrome (2353443532).

The spelling of 2021132330 in words is "two billion, twenty-one million, one hundred thirty-two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 28873319 57746638 144366595 202113233 288733190 404226466 1010566165 2021132330