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20201487330 = 2351677335501
BaseRepresentation
bin10010110100000110…
…100011101111100010
31221010212122212220110
4102310012203233202
5312333040043310
613140323552150
71313416544343
oct226406435742
957125585813
1020201487330
118627238482
123ab952b656
131b9c362bcb
14d98d740ca
157d37bad20
hex4b41a3be2

20201487330 has 64 divisors (see below), whose sum is σ = 48849308928. Its totient is φ = 5346528000.

The previous prime is 20201487281. The next prime is 20201487331. The reversal of 20201487330 is 3378410202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20201487331) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3669580 + ... + 3675080.

It is an arithmetic number, because the mean of its divisors is an integer number (763270452).

Almost surely, 220201487330 is an apocalyptic number.

20201487330 is an abundant number, since it is smaller than the sum of its proper divisors (28647821598).

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

20201487330 is a wasteful number, since it uses less digits than its factorization.

20201487330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6411.

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 20201487330 its reverse (3378410202), we get a palindrome (23579897532).

The spelling of 20201487330 in words is "twenty billion, two hundred one million, four hundred eighty-seven thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 167 334 501 733 835 1002 1466 1670 2199 2505 3665 4398 5010 5501 7330 10995 11002 16503 21990 27505 33006 55010 82515 122411 165030 244822 367233 612055 734466 918667 1224110 1836165 1837334 2756001 3672330 4032233 4593335 5512002 8064466 9186670 12096699 13780005 20161165 24193398 27560010 40322330 60483495 120966990 673382911 1346765822 2020148733 3366914555 4040297466 6733829110 10100743665 20201487330