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97409093 = 457213149
BaseRepresentation
bin1011100111001…
…01100001000101
320210021220011012
411303211201011
5144414042333
613355452005
72261651345
oct563454105
9223256135
1097409093
114aa91991
1228757005
1317247422
14cd18d25
158841e48
hex5ce5845

97409093 has 4 divisors (see below), whose sum is σ = 97622700. Its totient is φ = 97195488.

The previous prime is 97409087. The next prime is 97409113. The reversal of 97409093 is 39090479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39090479 = 263148633.

It can be written as a sum of positive squares in 2 ways, for example, as 77141089 + 20268004 = 8783^2 + 4502^2 .

It is a cyclic number.

It is not a de Polignac number, because 97409093 - 214 = 97392709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97409093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97409003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106118 + ... + 107031.

It is an arithmetic number, because the mean of its divisors is an integer number (24405675).

Almost surely, 297409093 is an apocalyptic number.

It is an amenable number.

97409093 is a deficient number, since it is larger than the sum of its proper divisors (213607).

97409093 is a wasteful number, since it uses less digits than its factorization.

97409093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213606.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 97409093 is about 9869.6045006880. The cubic root of 97409093 is about 460.1151145425.

The spelling of 97409093 in words is "ninety-seven million, four hundred nine thousand, ninety-three".

Divisors: 1 457 213149 97409093