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13155245353405 = 5171311517824053
BaseRepresentation
bin1011111101101111000110…
…1110011110100110111101
31201120121222200000121022101
42333123301232132212331
53211013420302302110
643551234123145101
72525302146340231
oct277336156364675
951517880017271
1013155245353405
114212121055561
1215856a9075191
137456c3b6cb8c
14336a082a45c1
1517c2e89d513a
hexbf6f1b9e9bd

13155245353405 has 32 divisors (see below), whose sum is σ = 16954036501248. Its totient is φ = 9764416896000.

The previous prime is 13155245353343. The next prime is 13155245353531. The reversal of 13155245353405 is 50435354255131.

It is a happy number.

It is not a de Polignac number, because 13155245353405 - 231 = 13153097869757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2230642 + ... + 5593411.

It is an arithmetic number, because the mean of its divisors is an integer number (529813640664).

Almost surely, 213155245353405 is an apocalyptic number.

It is an amenable number.

13155245353405 is a deficient number, since it is larger than the sum of its proper divisors (3798791147843).

13155245353405 is a wasteful number, since it uses less digits than its factorization.

13155245353405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824357.

The product of its (nonzero) digits is 2700000, while the sum is 46.

The spelling of 13155245353405 in words is "thirteen trillion, one hundred fifty-five billion, two hundred forty-five million, three hundred fifty-three thousand, four hundred five".

Divisors: 1 5 17 85 131 151 655 755 2227 2567 11135 12835 19781 98905 336277 1681385 7824053 39120265 133008901 665044505 1024950943 1181432003 5124754715 5907160015 17424166031 20084344051 87120830155 100421720255 154767592393 773837961965 2631049070681 13155245353405