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97044389 = 139417933
BaseRepresentation
bin1011100100011…
…00011110100101
320202121100212122
411302030132211
5144320410024
613343555325
72255602151
oct562143645
9222540778
1097044389
114a862982
12285bbb45
131714a420
14cc62061
1587bdd5e
hex5c8c7a5

97044389 has 8 divisors (see below), whose sum is σ = 104633592. Its totient is φ = 89472960.

The previous prime is 97044373. The next prime is 97044401. The reversal of 97044389 is 98344079.

It can be written as a sum of positive squares in 4 ways, for example, as 2079364 + 94965025 = 1442^2 + 9745^2 .

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 97044389 - 24 = 97044373 is a prime.

It is a super-2 number, since 2×970443892 = 18835226872766642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97044319) 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, 8267 + ... + 16199.

It is an arithmetic number, because the mean of its divisors is an integer number (13079199).

Almost surely, 297044389 is an apocalyptic number.

It is an amenable number.

97044389 is a deficient number, since it is larger than the sum of its proper divisors (7589203).

97044389 is a wasteful number, since it uses less digits than its factorization.

97044389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 97044389 is about 9851.1110540893. Note that the first 3 decimals coincide. The cubic root of 97044389 is about 459.5401658787.

The spelling of 97044389 in words is "ninety-seven million, forty-four thousand, three hundred eighty-nine".

Divisors: 1 13 941 7933 12233 103129 7464953 97044389