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3144012320 = 25519650077
BaseRepresentation
bin1011101101100101…
…1101001000100000
322010010000101002202
42323121131020200
522414331343240
61235551032332
7140624443451
oct27331351040
98103011082
103144012320
111373792a99
12738b0b6a8
133b1497c27
1421b7b3128
1513603e315
hexbb65d220

3144012320 has 24 divisors (see below), whose sum is σ = 7427729484. Its totient is φ = 1257604864.

The previous prime is 3144012299. The next prime is 3144012329. The reversal of 3144012320 is 232104413.

It can be written as a sum of positive squares in 2 ways, for example, as 2955444496 + 188567824 = 54364^2 + 13732^2 .

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 = 3144012292 and 3144012301.

It is not an unprimeable number, because it can be changed into a prime (3144012329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9824879 + ... + 9825198.

Almost surely, 23144012320 is an apocalyptic number.

It is an amenable number.

3144012320 is an abundant number, since it is smaller than the sum of its proper divisors (4283717164).

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

3144012320 is a wasteful number, since it uses less digits than its factorization.

3144012320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19650092 (or 19650084 counting only the distinct ones).

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

The square root of 3144012320 is about 56071.4929353589. The cubic root of 3144012320 is about 1464.9678024506.

Adding to 3144012320 its reverse (232104413), we get a palindrome (3376116733).

The spelling of 3144012320 in words is "three billion, one hundred forty-four million, twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 19650077 39300154 78600308 98250385 157200616 196500770 314401232 393001540 628802464 786003080 1572006160 3144012320