Search a number
-
+
109042680 = 23357431223
BaseRepresentation
bin1100111111111…
…01101111111000
321121011221102210
412133331233320
5210403331210
614453055120
72462563455
oct637755770
9247157383
10109042680
115660841a
12306274a0
131978b6c6
14106a682c
15988de20
hex67fdbf8

109042680 has 64 divisors (see below), whose sum is σ = 327836160. Its totient is φ = 29015168.

The previous prime is 109042649. The next prime is 109042721. The reversal of 109042680 is 86240901.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88549 + ... + 89771.

It is an arithmetic number, because the mean of its divisors is an integer number (5122440).

Almost surely, 2109042680 is an apocalyptic number.

109042680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109042680 is an abundant number, since it is smaller than the sum of its proper divisors (218793480).

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

109042680 is a wasteful number, since it uses less digits than its factorization.

109042680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1976 counting only the distinct ones).

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

The square root of 109042680 is about 10442.3503101553. The cubic root of 109042680 is about 477.7479574361.

The spelling of 109042680 in words is "one hundred nine million, forty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 743 1223 1486 2229 2446 2972 3669 3715 4458 4892 5944 6115 7338 7430 8916 9784 11145 12230 14676 14860 17832 18345 22290 24460 29352 29720 36690 44580 48920 73380 89160 146760 908689 1817378 2726067 3634756 4543445 5452134 7269512 9086890 10904268 13630335 18173780 21808536 27260670 36347560 54521340 109042680