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3130203040 = 255106918301
BaseRepresentation
bin1011101010010011…
…0001101110100000
322002011000210022221
42322210301232200
522402312444130
61234335040424
7140366200246
oct27244615640
98064023287
103130203040
111366a10968
12734370114
133ab671563
14219a1a796
15134c1287a
hexba931ba0

3130203040 has 48 divisors (see below), whose sum is σ = 7402426920. Its totient is φ = 1250841600.

The previous prime is 3130203019. The next prime is 3130203049. The reversal of 3130203040 is 403020313.

It can be written as a sum of positive squares in 4 ways, for example, as 1472410384 + 1657792656 = 38372^2 + 40716^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (3130203049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161890 + ... + 180190.

Almost surely, 23130203040 is an apocalyptic number.

It is an amenable number.

3130203040 is an abundant number, since it is smaller than the sum of its proper divisors (4272223880).

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

3130203040 is a wasteful number, since it uses less digits than its factorization.

3130203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19385 (or 19377 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3130203040 is about 55948.2174872444. The cubic root of 3130203040 is about 1462.8198208687.

Adding to 3130203040 its reverse (403020313), we get a palindrome (3533223353).

The spelling of 3130203040 in words is "three billion, one hundred thirty million, two hundred three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1069 2138 4276 5345 8552 10690 17104 18301 21380 34208 36602 42760 73204 85520 91505 146408 171040 183010 292816 366020 585632 732040 1464080 2928160 19563769 39127538 78255076 97818845 156510152 195637690 313020304 391275380 626040608 782550760 1565101520 3130203040