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2103131030310 = 232547670174197
BaseRepresentation
bin11110100110101100011…
…000001100001100100110
321110001112211002000100100
4132212230120030030212
5233424203020432220
64250055352524530
7304642355540562
oct36465430141446
97401484060310
102103131030310
11740a29702342
1229b7263b0746
1312342a944a6b
1473b136a46a2
1539a9203ed90
hex1e9ac60c326

2103131030310 has 96 divisors (see below), whose sum is σ = 5585392755072. Its totient is φ = 548812972800.

The previous prime is 2103131030281. The next prime is 2103131030347. The reversal of 2103131030310 is 130301313012.

It is a happy number.

2103131030310 is a `hidden beast` number, since 2 + 1 + 0 + 313 + 10 + 30 + 310 = 666.

It is a super-2 number, since 2×21031310303102 (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28308132 + ... + 28382328.

It is an arithmetic number, because the mean of its divisors is an integer number (58181174532).

Almost surely, 22103131030310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103131030310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2792696377536).

2103131030310 is an abundant number, since it is smaller than the sum of its proper divisors (3482261724762).

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

2103131030310 is a wasteful number, since it uses less digits than its factorization.

2103131030310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80958 (or 80955 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 2103131030310 its reverse (130301313012), we get a palindrome (2233432343322).

The spelling of 2103131030310 in words is "two trillion, one hundred three billion, one hundred thirty-one million, thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 47 90 94 141 235 282 423 470 705 846 1410 2115 4230 6701 13402 20103 33505 40206 60309 67010 74197 100515 120618 148394 201030 222591 301545 314947 370985 445182 603090 629894 667773 741970 944841 1112955 1335546 1574735 1889682 2225910 2834523 3149470 3338865 3487259 4724205 5669046 6677730 6974518 9448410 10461777 14172615 17436295 20923554 28345230 31385331 34872590 52308885 62770662 104617770 156926655 313853310 497194097 994388194 1491582291 2485970485 2983164582 4474746873 4971940970 7457911455 8949493746 14915822910 22373734365 23368122559 44747468730 46736245118 70104367677 116840612795 140208735354 210313103031 233681225590 350521838385 420626206062 701043676770 1051565515155 2103131030310