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13105702290 = 2353137380869
BaseRepresentation
bin11000011010010100…
…10010010110010010
31020211100200122202010
430031022102112102
5203320024433130
610004244403350
7642525426402
oct141512222622
936740618663
1013105702290
11561591111a
1226590a6556
13130b260b35
148c4802802
1551a8810b0
hex30d292592

13105702290 has 64 divisors (see below), whose sum is σ = 33345930240. Its totient is φ = 3290699520.

The previous prime is 13105702261. The next prime is 13105702297. The reversal of 13105702290 is 9220750131.

It is a super-2 number, since 2×131057022902 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13105702297) 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, 156025 + ... + 224844.

It is an arithmetic number, because the mean of its divisors is an integer number (521030160).

Almost surely, 213105702290 is an apocalyptic number.

13105702290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13105702290 is an abundant number, since it is smaller than the sum of its proper divisors (20240227950).

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

13105702290 is a wasteful number, since it uses less digits than its factorization.

13105702290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380947.

The product of its (nonzero) digits is 3780, while the sum is 30.

The spelling of 13105702290 in words is "thirteen billion, one hundred five million, seven hundred two thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 37 62 74 93 111 155 185 186 222 310 370 465 555 930 1110 1147 2294 3441 5735 6882 11470 17205 34410 380869 761738 1142607 1904345 2285214 3808690 5713035 11426070 11806939 14092153 23613878 28184306 35420817 42276459 59034695 70460765 70841634 84552918 118069390 140921530 177104085 211382295 354208170 422764590 436856743 873713486 1310570229 2184283715 2621140458 4368567430 6552851145 13105702290