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108142500 = 2235414419
BaseRepresentation
bin1100111001000…
…01111110100100
321112111012121210
412130201332210
5210141030000
614421511420
72452124154
oct634417644
9245435553
10108142500
1156053074
1230272570
1319534a5b
1410510764
159762350
hex6721fa4

108142500 has 60 divisors (see below), whose sum is σ = 315336560. Its totient is φ = 28836000.

The previous prime is 108142493. The next prime is 108142501. The reversal of 108142500 is 5241801.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (108142501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 291 + ... + 14709.

Almost surely, 2108142500 is an apocalyptic number.

108142500 is a gapful number since it is divisible by the number (10) 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 108142500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157668280).

108142500 is an abundant number, since it is smaller than the sum of its proper divisors (207194060).

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

108142500 is a wasteful number, since it uses less digits than its factorization.

108142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14446 (or 14429 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 108142500 is about 10399.1586198115. The cubic root of 108142500 is about 476.4296722892.

The spelling of 108142500 in words is "one hundred eight million, one hundred forty-two thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 125 150 250 300 375 500 625 750 1250 1500 1875 2500 3750 7500 14419 28838 43257 57676 72095 86514 144190 173028 216285 288380 360475 432570 720950 865140 1081425 1441900 1802375 2162850 3604750 4325700 5407125 7209500 9011875 10814250 18023750 21628500 27035625 36047500 54071250 108142500