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97009705 = 5131492457
BaseRepresentation
bin1011100100001…
…00000000101001
320202112121022001
411302010000221
5144313302310
613343131001
72255366062
oct562040051
9222477261
1097009705
114a839911
12285a3a61
13171376c0
14cc53569
1587b393a
hex5c84029

97009705 has 8 divisors (see below), whose sum is σ = 125366472. Its totient is φ = 71637888.

The previous prime is 97009691. The next prime is 97009711. The reversal of 97009705 is 50790079.

It can be written as a sum of positive squares in 4 ways, for example, as 6911641 + 90098064 = 2629^2 + 9492^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-97009705 is a prime.

It is a super-3 number, since 3×970097053 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746164 + ... + 746293.

It is an arithmetic number, because the mean of its divisors is an integer number (15670809).

Almost surely, 297009705 is an apocalyptic number.

It is an amenable number.

97009705 is a deficient number, since it is larger than the sum of its proper divisors (28356767).

97009705 is a wasteful number, since it uses less digits than its factorization.

97009705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492475.

The product of its (nonzero) digits is 19845, while the sum is 37.

The square root of 97009705 is about 9849.3504861996. The cubic root of 97009705 is about 459.4854122740.

The spelling of 97009705 in words is "ninety-seven million, nine thousand, seven hundred five".

Divisors: 1 5 13 65 1492457 7462285 19401941 97009705