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9141631989 = 37435315809
BaseRepresentation
bin10001000001110001…
…00011101111110101
3212121002121000120120
420200320203233311
5122210224210424
64111040522153
7442352406210
oct104070435765
925532530516
109141631989
113971238466
121931620359
13b28c0c3c9
1462a162777
15387856a79
hex220e23bf5

9141631989 has 8 divisors (see below), whose sum is σ = 13930105920. Its totient is φ = 5223789696.

The previous prime is 9141631987. The next prime is 9141631997. The reversal of 9141631989 is 9891361419.

9141631989 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9141631989 - 21 = 9141631987 is a prime.

It is a super-2 number, since 2×91416319892 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9141631987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217657884 + ... + 217657925.

It is an arithmetic number, because the mean of its divisors is an integer number (1741263240).

Almost surely, 29141631989 is an apocalyptic number.

It is an amenable number.

9141631989 is a deficient number, since it is larger than the sum of its proper divisors (4788473931).

9141631989 is a wasteful number, since it uses less digits than its factorization.

9141631989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435315819.

The product of its digits is 419904, while the sum is 51.

The square root of 9141631989 is about 95611.8820492516. The cubic root of 9141631989 is about 2090.9384298661.

The spelling of 9141631989 in words is "nine billion, one hundred forty-one million, six hundred thirty-one thousand, nine hundred eighty-nine".

Divisors: 1 3 7 21 435315809 1305947427 3047210663 9141631989