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89722131 = 3241124097
BaseRepresentation
bin1010101100100…
…00110100010011
320020211100121220
411112100310103
5140432102011
612523020123
72136424362
oct526206423
9206740556
1089722131
1146711624
122606a643
1315785625
14bcb77d9
157d24506
hex5590d13

89722131 has 8 divisors (see below), whose sum is σ = 120126864. Its totient is φ = 59566080.

The previous prime is 89722121. The next prime is 89722147. The reversal of 89722131 is 13122798.

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

It is not a de Polignac number, because 89722131 - 25 = 89722099 is a prime.

It is a super-2 number, since 2×897221312 = 16100121582362322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 89722092 and 89722101.

It is not an unprimeable number, because it can be changed into a prime (89722111) 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, 61326 + ... + 62771.

It is an arithmetic number, because the mean of its divisors is an integer number (15015858).

Almost surely, 289722131 is an apocalyptic number.

89722131 is a deficient number, since it is larger than the sum of its proper divisors (30404733).

89722131 is a wasteful number, since it uses less digits than its factorization.

89722131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124341.

The product of its digits is 6048, while the sum is 33.

The square root of 89722131 is about 9472.1766769840. The cubic root of 89722131 is about 447.6787979174.

The spelling of 89722131 in words is "eighty-nine million, seven hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 3 241 723 124097 372291 29907377 89722131