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108378520 = 2357934297
BaseRepresentation
bin1100111010110…
…11100110011000
321112221012101021
412131123212120
5210221103040
614430532224
72454126235
oct635334630
9245835337
10108378520
11561a4428
1230367074
13195b8303
141057278c
1597ac24a
hex675b998

108378520 has 32 divisors (see below), whose sum is σ = 246945600. Its totient is φ = 42801408.

The previous prime is 108378503. The next prime is 108378521. The reversal of 108378520 is 25873801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108378521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13989 + ... + 20308.

It is an arithmetic number, because the mean of its divisors is an integer number (7717050).

Almost surely, 2108378520 is an apocalyptic number.

108378520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108378520 is an abundant number, since it is smaller than the sum of its proper divisors (138567080).

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

108378520 is a wasteful number, since it uses less digits than its factorization.

108378520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34387 (or 34383 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 108378520 is about 10410.5004682772. The cubic root of 108378520 is about 476.7760215521.

The spelling of 108378520 in words is "one hundred eight million, three hundred seventy-eight thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 34297 68594 137188 171485 274376 342970 685940 1371880 2709463 5418926 10837852 13547315 21675704 27094630 54189260 108378520