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13145271454770 = 2357133317431237
BaseRepresentation
bin1011111101001001111100…
…1111000100110000110010
31201112200020120101001112020
42333102133033010300302
53210333003443023040
643542504312012310
72524500036525450
oct277223717046062
951480216331466
1013145271454770
114208973048924
121583784991096
137447946c1000
1433633d7b79d0
1517be13080cd0
hexbf49f3c4c32

13145271454770 has 512 divisors, whose sum is σ = 40405733867520. Its totient is φ = 2678260515840.

The previous prime is 13145271454741. The next prime is 13145271454811. The reversal of 13145271454770 is 7745417254131.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 10626734592 + ... + 10626735828.

It is an arithmetic number, because the mean of its divisors is an integer number (78917448960).

Almost surely, 213145271454770 is an apocalyptic number.

13145271454770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13145271454770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20202866933760).

13145271454770 is an abundant number, since it is smaller than the sum of its proper divisors (27260462412750).

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

13145271454770 is a wasteful number, since it uses less digits than its factorization.

13145271454770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 13145271454770 in words is "thirteen trillion, one hundred forty-five billion, two hundred seventy-one million, four hundred fifty-four thousand, seven hundred seventy".