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11693389040 = 245433399241
BaseRepresentation
bin10101110001111101…
…01111010011110000
31010011221011201011222
422320332233103300
5142422001422130
65212153524212
7562526111144
oct127076572360
933157151158
1011693389040
114a60682293
122324113668
131144790918
147cd007224
154868a7ce5
hex2b8faf4f0

11693389040 has 40 divisors (see below), whose sum is σ = 27819396528. Its totient is φ = 4568578560.

The previous prime is 11693388989. The next prime is 11693389063. The reversal of 11693389040 is 4098339611.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 11693388982 and 11693389000.

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, 1696181 + ... + 1703060.

Almost surely, 211693389040 is an apocalyptic number.

11693389040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11693389040 is an abundant number, since it is smaller than the sum of its proper divisors (16126007488).

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

11693389040 is a wasteful number, since it uses less digits than its factorization.

11693389040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399297 (or 3399291 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 11693389040 in words is "eleven billion, six hundred ninety-three million, three hundred eighty-nine thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 43 80 86 172 215 344 430 688 860 1720 3440 3399241 6798482 13596964 16996205 27193928 33992410 54387856 67984820 135969640 146167363 271939280 292334726 584669452 730836815 1169338904 1461673630 2338677808 2923347260 5846694520 11693389040