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40878882 = 2321121372
BaseRepresentation
bin1001101111110…
…0001100100010
32211220212021200
42123330030202
540431111012
64020102030
71004315262
oct233741442
984825250
1040878882
1121090a00
1211834916
1386138b5
1456017a2
1538c73dc
hex26fc322

40878882 has 54 divisors (see below), whose sum is σ = 98070609. Its totient is φ = 12297120.

The previous prime is 40878881. The next prime is 40878883. The reversal of 40878882 is 28887804.

40878882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40878881) and next prime (40878883).

It can be written as a sum of positive squares in 2 ways, for example, as 40564161 + 314721 = 6369^2 + 561^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=4521.

It is not an unprimeable number, because it can be changed into a prime (40878881) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 298318 + ... + 298454.

Almost surely, 240878882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40878882

40878882 is an abundant number, since it is smaller than the sum of its proper divisors (57191727).

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

40878882 is a wasteful number, since it uses less digits than its factorization.

40878882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 40878882 is about 6393.6595154888. The cubic root of 40878882 is about 344.4818434668.

The spelling of 40878882 in words is "forty million, eight hundred seventy-eight thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 121 137 198 242 274 363 411 726 822 1089 1233 1507 2178 2466 3014 4521 9042 13563 16577 18769 27126 33154 37538 49731 56307 99462 112614 149193 168921 206459 298386 337842 412918 619377 1238754 1858131 2271049 3716262 4542098 6813147 13626294 20439441 40878882