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13123211201300 = 2252675773394607
BaseRepresentation
bin1011111011110111110001…
…0101111000101100010100
31201110120022011010001211102
42332331330111320230110
53210002314031420200
643524415304125232
72523056256465614
oct276757425705424
951416264101742
1013123211201300
1141aa582668992
12157b448a66818
1374268a2338a5
14335249a30a44
1517b5714ee6d5
hexbef7c578b14

13123211201300 has 72 divisors (see below), whose sum is σ = 28952503004544. Its totient is φ = 5161973667840.

The previous prime is 13123211201297. The next prime is 13123211201351. The reversal of 13123211201300 is 310211232131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2168597 + ... + 5563203.

Almost surely, 213123211201300 is an apocalyptic number.

13123211201300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13123211201300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14476251502272).

13123211201300 is an abundant number, since it is smaller than the sum of its proper divisors (15829291803244).

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

13123211201300 is a wasteful number, since it uses less digits than its factorization.

13123211201300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395265 (or 3395258 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13123211201300 its reverse (310211232131), we get a palindrome (13433422433431).

The spelling of 13123211201300 in words is "thirteen trillion, one hundred twenty-three billion, two hundred eleven million, two hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 67 100 134 268 335 577 670 1154 1340 1675 2308 2885 3350 5770 6700 11540 14425 28850 38659 57700 77318 154636 193295 386590 773180 966475 1932950 3394607 3865900 6789214 13578428 16973035 33946070 67892140 84865175 169730350 227438669 339460700 454877338 909754676 1137193345 1958688239 2274386690 3917376478 4548773380 5685966725 7834752956 9793441195 11371933450 19586882390 22743866900 39173764780 48967205975 97934411950 131232112013 195868823900 262464224026 524928448052 656160560065 1312321120130 2624642240260 3280802800325 6561605600650 13123211201300