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108143712 = 25321133323
BaseRepresentation
bin1100111001000…
…10010001100000
321112111021021200
412130202101200
5210141044322
614421521200
72452130535
oct634422140
9245437250
10108143712
1156053a76
1230273200
1319535481
1410510d8c
1597628ac
hex6722460

108143712 has 72 divisors (see below), whose sum is σ = 310348584. Its totient is φ = 35718144.

The previous prime is 108143683. The next prime is 108143713. The reversal of 108143712 is 217341801.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108143713) 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, 30883 + ... + 34205.

It is an arithmetic number, because the mean of its divisors is an integer number (4310397).

Almost surely, 2108143712 is an apocalyptic number.

108143712 is a gapful number since it is divisible by the number (12) 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 108143712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155174292).

108143712 is an abundant number, since it is smaller than the sum of its proper divisors (202204872).

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

108143712 is a wasteful number, since it uses less digits than its factorization.

108143712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452 (or 3441 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 108143712 is about 10399.2168935935. The cubic root of 108143712 is about 476.4314521340.

The spelling of 108143712 in words is "one hundred eight million, one hundred forty-three thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 113 144 226 288 339 452 678 904 1017 1356 1808 2034 2712 3323 3616 4068 5424 6646 8136 9969 10848 13292 16272 19938 26584 29907 32544 39876 53168 59814 79752 106336 119628 159504 239256 319008 375499 478512 750998 957024 1126497 1501996 2252994 3003992 3379491 4505988 6007984 6758982 9011976 12015968 13517964 18023952 27035928 36047904 54071856 108143712