Search a number
-
+
10302131320 = 2351319811791
BaseRepresentation
bin10011001100000111…
…00000110001111000
3222120222021111101021
421212003200301320
5132044321200240
64422134232224
7513203446165
oct114603406170
928528244337
1010302131320
114407314818
121bb61b5674
13c824833c0
146da32d06c
1540468d54a
hex2660e0c78

10302131320 has 32 divisors (see below), whose sum is σ = 24962857920. Its totient is φ = 3803863680.

The previous prime is 10302131293. The next prime is 10302131321. The reversal of 10302131320 is 2313120301.

It is a super-2 number, since 2×103021313202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10302131294 and 10302131303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302131321) 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, 9905376 + ... + 9906415.

It is an arithmetic number, because the mean of its divisors is an integer number (780089310).

Almost surely, 210302131320 is an apocalyptic number.

10302131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10302131320 is an abundant number, since it is smaller than the sum of its proper divisors (14660726600).

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

10302131320 is a wasteful number, since it uses less digits than its factorization.

10302131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19811815 (or 19811811 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10302131320 its reverse (2313120301), we get a palindrome (12615251621).

The spelling of 10302131320 in words is "ten billion, three hundred two million, one hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 19811791 39623582 79247164 99058955 158494328 198117910 257553283 396235820 515106566 792471640 1030213132 1287766415 2060426264 2575532830 5151065660 10302131320