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40513155 = 353138629
BaseRepresentation
bin1001101010001…
…0111010000011
32211020021121020
42122202322003
540332410110
64004200523
71001233104
oct232427203
984207536
1040513155
1120961151
1211699143
1385162a7
1455483ab
153853d70
hex26a2e83

40513155 has 16 divisors (see below), whose sum is σ = 65035680. Its totient is φ = 21535488.

The previous prime is 40513153. The next prime is 40513163. The reversal of 40513155 is 55131504.

It is not a de Polignac number, because 40513155 - 21 = 40513153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40513153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (4064730).

Almost surely, 240513155 is an apocalyptic number.

40513155 is a deficient number, since it is larger than the sum of its proper divisors (24522525).

40513155 is a wasteful number, since it uses less digits than its factorization.

40513155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 40513155 is about 6364.9945011759. The cubic root of 40513155 is about 343.4514507554.

Adding to 40513155 its reverse (55131504), we get a palindrome (95644659).

The spelling of 40513155 in words is "forty million, five hundred thirteen thousand, one hundred fifty-five".