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40157862 = 2323290999
BaseRepresentation
bin1001100100110…
…0001010100110
32210120020020020
42121030022212
540240022422
63552420010
7665223213
oct231141246
983506206
1040157862
1120739218
1211547606
138420664
145494b0a
1537d395c
hex264c2a6

40157862 has 16 divisors (see below), whose sum is σ = 83808000. Its totient is φ = 12803912.

The previous prime is 40157861. The next prime is 40157867. The reversal of 40157862 is 26875104.

It is a super-2 number, since 2×401578622 = 3225307760822088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40157861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145362 + ... + 145637.

It is an arithmetic number, because the mean of its divisors is an integer number (5238000).

Almost surely, 240157862 is an apocalyptic number.

40157862 is an abundant number, since it is smaller than the sum of its proper divisors (43650138).

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

40157862 is a wasteful number, since it uses less digits than its factorization.

40157862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291027.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 40157862 is about 6337.0231181526. The cubic root of 40157862 is about 342.4444991496. Note that the first 4 decimals are identical.

The spelling of 40157862 in words is "forty million, one hundred fifty-seven thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 23 46 69 138 290999 581998 872997 1745994 6692977 13385954 20078931 40157862