Search a number
-
+
40115336180 = 2254637432557
BaseRepresentation
bin100101010111000011…
…110111001111110100
310211112201002012222212
4211113003313033310
51124124011224210
630232334512552
72620044505613
oct452703671764
9124481065885
1040115336180
11160160748a7
127936665758
133a23c3571a
141d27a3187a
15109bbba805
hex9570f73f4

40115336180 has 24 divisors (see below), whose sum is σ = 84260568168. Its totient is φ = 16042636928.

The previous prime is 40115336179. The next prime is 40115336189. The reversal of 40115336180 is 8163351104.

It can be written as a sum of positive squares in 4 ways, for example, as 16875664 + 40098460516 = 4108^2 + 200246^2 .

It is a super-3 number, since 3×401153361803 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40115336189) 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, 123539 + ... + 309018.

It is an arithmetic number, because the mean of its divisors is an integer number (3510857007).

Almost surely, 240115336180 is an apocalyptic number.

It is an amenable number.

40115336180 is an abundant number, since it is smaller than the sum of its proper divisors (44145231988).

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

40115336180 is a wasteful number, since it uses less digits than its factorization.

40115336180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437203 (or 437201 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 40115336180 its reverse (8163351104), we get a palindrome (48278687284).

The spelling of 40115336180 in words is "forty billion, one hundred fifteen million, three hundred thirty-six thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 4637 9274 18548 23185 46370 92740 432557 865114 1730228 2162785 4325570 8651140 2005766809 4011533618 8023067236 10028834045 20057668090 40115336180