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131468776128 = 26321039219677
BaseRepresentation
bin111101001110000100…
…1100101001011000000
3110120100021200210200200
41322130021211023000
54123222001314003
6140221304045200
712332630105334
oct1723411451300
9416307623620
10131468776128
11508347733a8
1221590763800
13c522283a31
1465125a17c4
153646c916a3
hex1e9c2652c0

131468776128 has 84 divisors (see below), whose sum is σ = 377195913120. Its totient is φ = 43780548096.

The previous prime is 131468776121. The next prime is 131468776133. The reversal of 131468776128 is 821677864131.

131468776128 is a `hidden beast` number, since 1 + 3 + 14 + 6 + 8 + 7 + 7 + 612 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (131468776121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 488626 + ... + 708302.

Almost surely, 2131468776128 is an apocalyptic number.

131468776128 is a gapful number since it is divisible by the number (18) 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 131468776128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188597956560).

131468776128 is an abundant number, since it is smaller than the sum of its proper divisors (245727136992).

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

131468776128 is a wasteful number, since it uses less digits than its factorization.

131468776128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220734 (or 220721 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 131468776128 in words is "one hundred thirty-one billion, four hundred sixty-eight million, seven hundred seventy-six thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 1039 2078 3117 4156 6234 8312 9351 12468 16624 18702 24936 33248 37404 49872 66496 74808 99744 149616 199488 219677 299232 439354 598464 659031 878708 1318062 1757416 1977093 2636124 3514832 3954186 5272248 7029664 7908372 10544496 14059328 15816744 21088992 31633488 42177984 63266976 126533952 228244403 456488806 684733209 912977612 1369466418 1825955224 2054199627 2738932836 3651910448 4108399254 5477865672 7303820896 8216798508 10955731344 14607641792 16433597016 21911462688 32867194032 43822925376 65734388064 131468776128