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40000357 = 331120847
BaseRepresentation
bin1001100010010…
…1101101100101
32210021020011201
42120211231211
540220002412
63545202501
7663666055
oct230455545
983236151
1040000357
1120640951
1211490431
138396a67
145453565
1537a1e57
hex2625b65

40000357 has 4 divisors (see below), whose sum is σ = 40121536. Its totient is φ = 39879180.

The previous prime is 40000349. The next prime is 40000361. The reversal of 40000357 is 75300004.

40000357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40000357 - 23 = 40000349 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 (40004357) 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 3 ways as a sum of consecutive naturals, for example, 60093 + ... + 60754.

It is an arithmetic number, because the mean of its divisors is an integer number (10030384).

Almost surely, 240000357 is an apocalyptic number.

40000357 is the 3652-nd hex number.

It is an amenable number.

40000357 is a deficient number, since it is larger than the sum of its proper divisors (121179).

40000357 is a wasteful number, since it uses less digits than its factorization.

40000357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121178.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 40000357 is about 6324.5835436019. The cubic root of 40000357 is about 341.9962067680.

The spelling of 40000357 in words is "forty million, three hundred fifty-seven", and thus it is an aban number.

Divisors: 1 331 120847 40000357