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40690160 = 245772661
BaseRepresentation
bin1001101100111…
…0000111110000
32211120021101222
42123032013300
540404041120
64012044212
71002601130
oct233160760
984507358
1040690160
1120a72135
1211763668
138578a24
145592ac0
15388b525
hex26ce1f0

40690160 has 40 divisors (see below), whose sum is σ = 108121056. Its totient is φ = 13950720.

The previous prime is 40690159. The next prime is 40690187. The reversal of 40690160 is 6109604.

40690160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 35771 + ... + 36890.

Almost surely, 240690160 is an apocalyptic number.

40690160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40690160 is an abundant number, since it is smaller than the sum of its proper divisors (67430896).

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

40690160 is a wasteful number, since it uses less digits than its factorization.

40690160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72681 (or 72675 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 40690160 is about 6378.8839149180. The cubic root of 40690160 is about 343.9509124116.

Adding to 40690160 its reverse (6109604), we get a palindrome (46799764).

The spelling of 40690160 in words is "forty million, six hundred ninety thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 72661 145322 290644 363305 508627 581288 726610 1017254 1162576 1453220 2034508 2543135 2906440 4069016 5086270 5812880 8138032 10172540 20345080 40690160