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40376831 = 115369257
BaseRepresentation
bin1001101000000…
…1100111111111
32210222100121012
42122001213333
540314024311
64001225435
71000124465
oct232014777
983870535
1040376831
1120878790
121163227b
138499221
145510835
15382878b
hex26819ff

40376831 has 8 divisors (see below), whose sum is σ = 44879184. Its totient is φ = 36013120.

The previous prime is 40376797. The next prime is 40376837. The reversal of 40376831 is 13867304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40376831 - 210 = 40375807 is a prime.

It is a super-2 number, since 2×403768312 = 3260576963205122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40376837) 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, 34046 + ... + 35211.

It is an arithmetic number, because the mean of its divisors is an integer number (5609898).

Almost surely, 240376831 is an apocalyptic number.

40376831 is a deficient number, since it is larger than the sum of its proper divisors (4502353).

40376831 is a wasteful number, since it uses less digits than its factorization.

40376831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69321.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 40376831 is about 6354.2765913989. The cubic root of 40376831 is about 343.0657876287.

The spelling of 40376831 in words is "forty million, three hundred seventy-six thousand, eight hundred thirty-one".

Divisors: 1 11 53 583 69257 761827 3670621 40376831