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13125451112252 = 2279317769170389
BaseRepresentation
bin1011111100000000000111…
…0110011101111100111100
31201110210002020220100000022
42333000001312131330330
53210021410441043002
643525425441151312
72523165625432343
oct277000166357474
951423066810008
1013125451112252
114200521a78166
12157b97302b538
137429562ca39b
143353bd2dab5a
1517b652ea1ba2
hexbf001d9df3c

13125451112252 has 48 divisors (see below), whose sum is σ = 23364149424000. Its totient is φ = 6450775179264.

The previous prime is 13125451112243. The next prime is 13125451112327. The reversal of 13125451112252 is 25221115452131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76947074 + ... + 77117462.

It is an arithmetic number, because the mean of its divisors is an integer number (486753113000).

Almost surely, 213125451112252 is an apocalyptic number.

It is an amenable number.

13125451112252 is a deficient number, since it is larger than the sum of its proper divisors (10238698311748).

13125451112252 is a wasteful number, since it uses less digits than its factorization.

13125451112252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171558 (or 171556 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

Adding to 13125451112252 its reverse (25221115452131), we get a palindrome (38346566564383).

The spelling of 13125451112252 in words is "thirteen trillion, one hundred twenty-five billion, four hundred fifty-one million, one hundred twelve thousand, two hundred fifty-two".

Divisors: 1 2 4 79 158 316 317 634 769 1268 1538 3076 25043 50086 60751 100172 121502 170389 243004 243773 340778 487546 681556 975092 13460731 19258067 26921462 38516134 53842924 54013313 77032268 108026626 131029141 216053252 262058282 524116564 4267051727 8534103454 10351302139 17068206908 20702604278 41405208556 41536237697 83072475394 166144950788 3281362778063 6562725556126 13125451112252