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2021132030 = 251937287501
BaseRepresentation
bin111100001111000…
…0000011011111110
312012212010010220212
41320132000123332
513114402211110
6532315512422
7101041224131
oct17036003376
95185103825
102021132030
11947970455
12484a58712
13262965b18
141525da218
15bc688e05
hex787806fe

2021132030 has 32 divisors (see below), whose sum is σ = 3933027360. Its totient is φ = 745200000.

The previous prime is 2021131999. The next prime is 2021132041. The reversal of 2021132030 is 302311202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021131996 and 2021132014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136721 + ... + 150780.

It is an arithmetic number, because the mean of its divisors is an integer number (122907105).

Almost surely, 22021132030 is an apocalyptic number.

2021132030 is a deficient number, since it is larger than the sum of its proper divisors (1911895330).

2021132030 is a wasteful number, since it uses less digits than its factorization.

2021132030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287564.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2021132030 is about 44957.0020130346. The cubic root of 2021132030 is about 1264.3429605168.

Adding to 2021132030 its reverse (302311202), we get a palindrome (2323443232).

The spelling of 2021132030 in words is "two billion, twenty-one million, one hundred thirty-two thousand, thirty".

Divisors: 1 2 5 10 19 37 38 74 95 185 190 370 703 1406 3515 7030 287501 575002 1437505 2875010 5462519 10637537 10925038 21275074 27312595 53187685 54625190 106375370 202113203 404226406 1010566015 2021132030