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131441244140 = 2257618636087
BaseRepresentation
bin111101001101010000…
…0100011011111101100
3110120021100220000220102
41322122200203133230
54123142424303030
6140214442010232
712332144066213
oct1723240433754
9416240800812
10131441244140
1150820179198
12215834a6978
13c51966420b
14650ca7607a
153644653c45
hex1e9a8237ec

131441244140 has 24 divisors (see below), whose sum is σ = 276389360352. Its totient is φ = 52507402880.

The previous prime is 131441244083. The next prime is 131441244167. The reversal of 131441244140 is 41442144131.

It is a happy number.

It is a super-2 number, since 2×1314412441402 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4302824 + ... + 4333263.

It is an arithmetic number, because the mean of its divisors is an integer number (11516223348).

Almost surely, 2131441244140 is an apocalyptic number.

131441244140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131441244140 is an abundant number, since it is smaller than the sum of its proper divisors (144948116212).

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

131441244140 is a wasteful number, since it uses less digits than its factorization.

131441244140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8636857 (or 8636855 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 131441244140 its reverse (41442144131), we get a palindrome (172883388271).

The spelling of 131441244140 in words is "one hundred thirty-one billion, four hundred forty-one million, two hundred forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 761 1522 3044 3805 7610 15220 8636087 17272174 34544348 43180435 86360870 172721740 6572062207 13144124414 26288248828 32860311035 65720622070 131441244140