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2021040153 = 34112398621
BaseRepresentation
bin111100001110110…
…1010000000011001
312012211221110220000
41320131222000121
513114341241103
6532313523213
7101040362226
oct17035520031
95184843800
102021040153
11947908420
12484a13509
13262933062
141525b494d
15bc66baa3
hex7876a019

2021040153 has 40 divisors (see below), whose sum is σ = 3436779456. Its totient is φ = 1171605600.

The previous prime is 2021040083. The next prime is 2021040163. The reversal of 2021040153 is 3510401202.

2021040153 is a `hidden beast` number, since 2 + 0 + 210 + 401 + 53 = 666.

It is not a de Polignac number, because 2021040153 - 217 = 2020909081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021040163) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28818 + ... + 69803.

Almost surely, 22021040153 is an apocalyptic number.

2021040153 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2021040153 is a deficient number, since it is larger than the sum of its proper divisors (1415739303).

2021040153 is a wasteful number, since it uses less digits than its factorization.

2021040153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98667 (or 98658 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2021040153 is about 44955.9801694947. The cubic root of 2021040153 is about 1264.3238019797.

Adding to 2021040153 its reverse (3510401202), we get a palindrome (5531441355).

The spelling of 2021040153 in words is "two billion, twenty-one million, forty thousand, one hundred fifty-three".

Divisors: 1 3 9 11 23 27 33 69 81 99 207 253 297 621 759 891 1863 2277 6831 20493 98621 295863 887589 1084831 2268283 2662767 3254493 6804849 7988301 9763479 20414547 24951113 29290437 61243641 74853339 87871311 183730923 224560017 673680051 2021040153