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13125413153021 = 1331296310991989
BaseRepresentation
bin1011111011111111111110…
…0101101010100011111101
31201110202222121110210201212
42332333333211222203331
53210021321231344041
643525422003414205
72523164654664131
oct276777745524375
951422877423655
1013125413153021
1142005026008a4
12157b962384365
1374294b4996c0
143353b82593c1
1517b64e9a48eb
hexbefff96a8fd

13125413153021 has 16 divisors (see below), whose sum is σ = 14595955745280. Its totient is φ = 11720976644160.

The previous prime is 13125413152927. The next prime is 13125413153029. The reversal of 13125413153021 is 12035131452131.

It is a cyclic number.

It is not a de Polignac number, because 13125413153021 - 214 = 13125413136637 is a prime.

It is a super-2 number, since 2×131254131530212 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125413153029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4301906 + ... + 6690083.

It is an arithmetic number, because the mean of its divisors is an integer number (912247234080).

Almost surely, 213125413153021 is an apocalyptic number.

It is an amenable number.

13125413153021 is a deficient number, since it is larger than the sum of its proper divisors (1470542592259).

13125413153021 is a wasteful number, since it uses less digits than its factorization.

13125413153021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10994996.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 13125413153021 in words is "thirteen trillion, one hundred twenty-five billion, four hundred thirteen million, one hundred fifty-three thousand, twenty-one".

Divisors: 1 13 31 403 2963 38519 91853 1194089 10991989 142895857 340751659 4429771567 32569263407 423400424291 1009647165617 13125413153021