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13873065570 = 23257139971699
BaseRepresentation
bin11001110101110011…
…00010111001100010
31022210211121202021100
430322321202321202
5211403001044240
610212335535230
71000534053210
oct147271427142
938724552240
1013873065570
115979a90551
12283208a516
131401227850
149586b3cb0
15562e0ce30
hex33ae62e62

13873065570 has 192 divisors, whose sum is σ = 44464492800. Its totient is φ = 2922407424.

The previous prime is 13873065527. The next prime is 13873065581. The reversal of 13873065570 is 7556037831.

13873065570 is a `hidden beast` number, since 1 + 3 + 8 + 73 + 0 + 6 + 5 + 570 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8164581 + ... + 8166279.

It is an arithmetic number, because the mean of its divisors is an integer number (231585900).

Almost surely, 213873065570 is an apocalyptic number.

13873065570 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 13873065570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22232246400).

13873065570 is an abundant number, since it is smaller than the sum of its proper divisors (30591427230).

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

13873065570 is a wasteful number, since it uses less digits than its factorization.

13873065570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 13873065570 in words is "thirteen billion, eight hundred seventy-three million, sixty-five thousand, five hundred seventy".