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131072044636 = 221316191556897
BaseRepresentation
bin111101000010010000…
…0001010111001011100
3110112022122011202101201
41322010200022321130
54121413420412021
6140114052445244
712320041665631
oct1720440127134
9415278152351
10131072044636
1150650830135
122149b919824
13c48b018080
1464b5a0c188
153622026591
hex1e8480ae5c

131072044636 has 24 divisors (see below), whose sum is σ = 247173126480. Its totient is φ = 60457385472.

The previous prime is 131072044619. The next prime is 131072044657. The reversal of 131072044636 is 636440270131.

It is a junction number, because it is equal to n+sod(n) for n = 131072044595 and 131072044604.

It is a congruent number.

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, 694261 + ... + 862636.

It is an arithmetic number, because the mean of its divisors is an integer number (10298880270).

Almost surely, 2131072044636 is an apocalyptic number.

It is an amenable number.

131072044636 is a deficient number, since it is larger than the sum of its proper divisors (116101081844).

131072044636 is a wasteful number, since it uses less digits than its factorization.

131072044636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558533 (or 1558531 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 131072044636 in words is "one hundred thirty-one billion, seventy-two million, forty-four thousand, six hundred thirty-six".

Divisors: 1 2 4 13 26 52 1619 3238 6476 21047 42094 84188 1556897 3113794 6227588 20239661 40479322 80958644 2520616243 5041232486 10082464972 32768011159 65536022318 131072044636