Search a number
-
+
108147940 = 225471031117
BaseRepresentation
bin1100111001000…
…11010011100100
321112111111002021
412130203103210
5210141213230
614421552524
72452146055
oct634432344
9245444067
10108147940
115605716a
1230275744
1319537384
141051272c
159763c7a
hex67234e4

108147940 has 48 divisors (see below), whose sum is σ = 234404352. Its totient is φ = 41890176.

The previous prime is 108147911. The next prime is 108147973. The reversal of 108147940 is 49741801.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 108147896 and 108147905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96262 + ... + 97378.

It is an arithmetic number, because the mean of its divisors is an integer number (4883424).

Almost surely, 2108147940 is an apocalyptic number.

108147940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108147940 is an abundant number, since it is smaller than the sum of its proper divisors (126256412).

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

108147940 is a wasteful number, since it uses less digits than its factorization.

108147940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 108147940 is about 10399.4201761444. The cubic root of 108147940 is about 476.4376609275.

The spelling of 108147940 in words is "one hundred eight million, one hundred forty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 47 94 103 188 206 235 412 470 515 940 1030 1117 2060 2234 4468 4841 5585 9682 11170 19364 22340 24205 48410 52499 96820 104998 115051 209996 230102 262495 460204 524990 575255 1049980 1150510 2301020 5407397 10814794 21629588 27036985 54073970 108147940