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131401411400 = 23527199471649
BaseRepresentation
bin111101001100000100…
…0100110101101001000
3110120011120221022122202
41322120020212231020
54123102230131100
6140210500135332
712331151365610
oct1723010465510
9416146838582
10131401411400
11507aa742276
1221572097548
13c51132884c
146507667a40
153640dd67d5
hex1e98226b48

131401411400 has 96 divisors (see below), whose sum is σ = 350907600000. Its totient is φ = 44825425920.

The previous prime is 131401411399. The next prime is 131401411423. The reversal of 131401411400 is 4114104131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42776 + ... + 514424.

It is an arithmetic number, because the mean of its divisors is an integer number (3655287500).

Almost surely, 2131401411400 is an apocalyptic number.

131401411400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131401411400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175453800000).

131401411400 is an abundant number, since it is smaller than the sum of its proper divisors (219506188600).

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

131401411400 is a wasteful number, since it uses less digits than its factorization.

131401411400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471871 (or 471862 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 131401411400 its reverse (4114104131), we get a palindrome (135515515531).

The spelling of 131401411400 in words is "one hundred thirty-one billion, four hundred one million, four hundred eleven thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 199 200 280 350 398 700 796 995 1393 1400 1592 1990 2786 3980 4975 5572 6965 7960 9950 11144 13930 19900 27860 34825 39800 55720 69650 139300 278600 471649 943298 1886596 2358245 3301543 3773192 4716490 6603086 9432980 11791225 13206172 16507715 18865960 23582450 26412344 33015430 47164900 66030860 82538575 93858151 94329800 132061720 165077150 187716302 330154300 375432604 469290755 657007057 660308600 750865208 938581510 1314014114 1877163020 2346453775 2628028228 3285035285 3754326040 4692907550 5256056456 6570070570 9385815100 13140141140 16425176425 18771630200 26280282280 32850352850 65700705700 131401411400