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3143041220 = 22511371013823
BaseRepresentation
bin1011101101010111…
…0000000011000100
322010001012001000002
42323111300003010
522414104304340
61235514140432
7140613260324
oct27325600304
98101161002
103143041220
11137318a430
12738721718
133b1217c07
1421b5dd284
15135deb715
hexbb5700c4

3143041220 has 96 divisors (see below), whose sum is σ = 7470199296. Its totient is φ = 1100736000.

The previous prime is 3143041193. The next prime is 3143041229. The reversal of 3143041220 is 221403413.

It is a super-2 number, since 2×31430412202 = 19757416221238176800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3143041192 and 3143041201.

It is not an unprimeable number, because it can be changed into a prime (3143041229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 820229 + ... + 824051.

It is an arithmetic number, because the mean of its divisors is an integer number (77814576).

Almost surely, 23143041220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143041220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3735099648).

3143041220 is an abundant number, since it is smaller than the sum of its proper divisors (4327158076).

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

3143041220 is a wasteful number, since it uses less digits than its factorization.

3143041220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981 (or 3979 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3143041220 is about 56062.8327860803. The cubic root of 3143041220 is about 1464.8169573326.

Adding to 3143041220 its reverse (221403413), we get a palindrome (3364444633).

The spelling of 3143041220 in words is "three billion, one hundred forty-three million, forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 37 44 55 74 101 110 148 185 202 220 370 404 407 505 740 814 1010 1111 1628 2020 2035 2222 3737 3823 4070 4444 5555 7474 7646 8140 11110 14948 15292 18685 19115 22220 37370 38230 41107 42053 74740 76460 82214 84106 141451 164428 168212 205535 210265 282902 386123 411070 420530 565804 707255 772246 822140 841060 1414510 1544492 1555961 1930615 2829020 3111922 3861230 4247353 6223844 7722460 7779805 8494706 14286551 15559610 16989412 21236765 28573102 31119220 42473530 57146204 71432755 84947060 142865510 157152061 285731020 314304122 628608244 785760305 1571520610 3143041220