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40235941 = 137509577
BaseRepresentation
bin1001100101111…
…1001110100101
32210201012100001
42121133032211
540300022231
63554221301
7665666644
oct231371645
983635301
1040235941
1120791949
1211584831
13844a065
1454b535b
1537ebb61
hex265f3a5

40235941 has 8 divisors (see below), whose sum is σ = 40679640. Its totient is φ = 39794688.

The previous prime is 40235927. The next prime is 40235981. The reversal of 40235941 is 14953204.

It can be written as a sum of positive squares in 4 ways, for example, as 26884225 + 13351716 = 5185^2 + 3654^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40235941 - 213 = 40227749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235911) 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, 69445 + ... + 70021.

It is an arithmetic number, because the mean of its divisors is an integer number (5084955).

Almost surely, 240235941 is an apocalyptic number.

It is an amenable number.

40235941 is a deficient number, since it is larger than the sum of its proper divisors (443699).

40235941 is a wasteful number, since it uses less digits than its factorization.

40235941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40235941 is about 6343.1806690335. The cubic root of 40235941 is about 342.6662939421. Note that the first 3 decimals are identical.

The spelling of 40235941 in words is "forty million, two hundred thirty-five thousand, nine hundred forty-one".

Divisors: 1 137 509 577 69733 79049 293693 40235941