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130021362 = 2344611741
BaseRepresentation
bin1111011111111…
…11011111110010
3100001122202210000
413233333133302
5231241140422
620522450430
73136110012
oct757773762
9301582700
10130021362
1167436a79
1237663a16
1320c25423
14133a7c42
15b634cac
hex7bff7f2

130021362 has 40 divisors (see below), whose sum is σ = 292143852. Its totient is φ = 43221600.

The previous prime is 130021361. The next prime is 130021363. The reversal of 130021362 is 263120031.

130021362 is a `hidden beast` number, since 1 + 300 + 2 + 1 + 362 = 666.

It is an interprime number because it is at equal distance from previous prime (130021361) and next prime (130021363).

It can be written as a sum of positive squares in 2 ways, for example, as 103612041 + 26409321 = 10179^2 + 5139^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130021361) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73812 + ... + 75552.

Almost surely, 2130021362 is an apocalyptic number.

130021362 is an abundant number, since it is smaller than the sum of its proper divisors (162122490).

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

130021362 is a wasteful number, since it uses less digits than its factorization.

130021362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2207 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 130021362 is about 11402.6909981811. The cubic root of 130021362 is about 506.6074479688.

Adding to 130021362 its reverse (263120031), we get a palindrome (393141393).

The spelling of 130021362 in words is "one hundred thirty million, twenty-one thousand, three hundred sixty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 461 922 1383 1741 2766 3482 4149 5223 8298 10446 12447 15669 24894 31338 37341 47007 74682 94014 141021 282042 802601 1605202 2407803 4815606 7223409 14446818 21670227 43340454 65010681 130021362