Search a number
-
+
108206940 = 22351803449
BaseRepresentation
bin1100111001100…
…01101101011100
321112121111000110
412130301231130
5210200110230
614423130020
72452513062
oct634615534
9245544013
10108206940
1156097526
12302a3910
131955819a
141052a032
1597764b0
hex6731b5c

108206940 has 24 divisors (see below), whose sum is σ = 302979600. Its totient is φ = 28855168.

The previous prime is 108206939. The next prime is 108206947. The reversal of 108206940 is 49602801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 108206898 and 108206907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108206947) 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, 901665 + ... + 901784.

It is an arithmetic number, because the mean of its divisors is an integer number (12624150).

Almost surely, 2108206940 is an apocalyptic number.

108206940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108206940 is an abundant number, since it is smaller than the sum of its proper divisors (194772660).

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

108206940 is a wasteful number, since it uses less digits than its factorization.

108206940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803461 (or 1803459 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 108206940 is about 10402.2564859746. The cubic root of 108206940 is about 476.5242852059.

The spelling of 108206940 in words is "one hundred eight million, two hundred six thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1803449 3606898 5410347 7213796 9017245 10820694 18034490 21641388 27051735 36068980 54103470 108206940