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13101312402 = 2321940195531
BaseRepresentation
bin11000011001110011…
…00010100110010010
31020211001102121221200
430030321202212102
5203312413444102
610004010332030
7642443214033
oct141471424622
936731377850
1013101312402
115613392a12
12265772a016
13130a384979
148c3dbca8a
1551a2b551c
hex30ce62992

13101312402 has 48 divisors (see below), whose sum is σ = 29955013920. Its totient is φ = 4126896000.

The previous prime is 13101312401. The next prime is 13101312403. The reversal of 13101312402 is 20421310131.

13101312402 is a `hidden beast` number, since 1 + 310 + 1 + 312 + 40 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (13101312401) and next prime (13101312403).

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 (13101312401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89377 + ... + 184907.

It is an arithmetic number, because the mean of its divisors is an integer number (624062790).

Almost surely, 213101312402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13101312402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14977506960).

13101312402 is an abundant number, since it is smaller than the sum of its proper divisors (16853701518).

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

13101312402 is a wasteful number, since it uses less digits than its factorization.

13101312402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95959 (or 95956 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13101312402 its reverse (20421310131), we get a palindrome (33522622533).

The spelling of 13101312402 in words is "thirteen billion, one hundred one million, three hundred twelve thousand, four hundred two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 401 802 1203 2406 3609 7218 7619 15238 22857 45714 68571 95531 137142 191062 286593 573186 859779 1719558 1815089 3630178 5445267 10890534 16335801 32671602 38307931 76615862 114923793 229847586 344771379 689542758 727850689 1455701378 2183552067 4367104134 6550656201 13101312402