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97490789 = 1121634943
BaseRepresentation
bin1011100111110…
…01011101100101
320210110001012222
411303321131211
5144424201124
613401322125
72262441464
oct563713545
9223401188
1097490789
1150038300
1228796345
1317275676
14cd3a9db
15885b25e
hex5cf9765

97490789 has 12 divisors (see below), whose sum is σ = 107838528. Its totient is φ = 88066440.

The previous prime is 97490773. The next prime is 97490807. The reversal of 97490789 is 98709479.

It is not a de Polignac number, because 97490789 - 24 = 97490773 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 97490789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97490089) 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 11 ways as a sum of consecutive naturals, for example, 17252 + ... + 22194.

It is an arithmetic number, because the mean of its divisors is an integer number (8986544).

Almost surely, 297490789 is an apocalyptic number.

It is an amenable number.

97490789 is a deficient number, since it is larger than the sum of its proper divisors (10347739).

97490789 is a wasteful number, since it uses less digits than its factorization.

97490789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128 (or 5117 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 97490789 is about 9873.7424009339. The cubic root of 97490789 is about 460.2437098631.

The spelling of 97490789 in words is "ninety-seven million, four hundred ninety thousand, seven hundred eighty-nine".

Divisors: 1 11 121 163 1793 4943 19723 54373 598103 805709 8862799 97490789