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141866815830 = 23547149367391
BaseRepresentation
bin1000010000011111101…
…0111101000101010110
3111120011221102221122020
42010013322331011112
54311020401101310
6145101150114010
713151410016025
oct2040772750526
9446157387566
10141866815830
1155190134543
12235b2aab906
13104bb57744c
146c1b5388bc
153a54a77170
hex2107ebd156

141866815830 has 64 divisors (see below), whose sum is σ = 347962687488. Its totient is φ = 37000883840.

The previous prime is 141866815829. The next prime is 141866815873. The reversal of 141866815830 is 38518668141.

141866815830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2071435 + ... + 2138825.

It is an arithmetic number, because the mean of its divisors is an integer number (5436916992).

Almost surely, 2141866815830 is an apocalyptic number.

141866815830 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 141866815830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173981343744).

141866815830 is an abundant number, since it is smaller than the sum of its proper divisors (206095871658).

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

141866815830 is a wasteful number, since it uses less digits than its factorization.

141866815830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68941.

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 141866815830 in words is "one hundred forty-one billion, eight hundred sixty-six million, eight hundred fifteen thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 1493 2986 4479 7465 8958 14930 22395 44790 67391 70171 134782 140342 202173 210513 336955 350855 404346 421026 673910 701710 1010865 1052565 2021730 2105130 3167377 6334754 9502131 15836885 19004262 31673770 47510655 95021310 100614763 201229526 301844289 503073815 603688578 1006147630 1509221445 3018442890 4728893861 9457787722 14186681583 23644469305 28373363166 47288938610 70933407915 141866815830