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97476145 = 5134613253
BaseRepresentation
bin1011100111101…
…01111000110001
320210102022010121
411303311320301
5144423214040
613401130241
72262351004
oct563657061
9223368117
1097476145
11500282a8
1228789981
131726bac0
14cd3553b
158856c4a
hex5cf5e31

97476145 has 16 divisors (see below), whose sum is σ = 126281232. Its totient is φ = 71804160.

The previous prime is 97476143. The next prime is 97476149. The reversal of 97476145 is 54167479.

It can be written as a sum of positive squares in 8 ways, for example, as 16 + 97476129 = 4^2 + 9873^2 .

It is not a de Polignac number, because 97476145 - 21 = 97476143 is a prime.

It is a super-2 number, since 2×974761452 = 19003197688122050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97476143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28339 + ... + 31591.

It is an arithmetic number, because the mean of its divisors is an integer number (7892577).

Almost surely, 297476145 is an apocalyptic number.

It is an amenable number.

97476145 is a deficient number, since it is larger than the sum of its proper divisors (28805087).

97476145 is a wasteful number, since it uses less digits than its factorization.

97476145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732.

The product of its digits is 211680, while the sum is 43.

The square root of 97476145 is about 9873.0008102907. Note that the first 3 decimals coincide. The cubic root of 97476145 is about 460.2206644505.

The spelling of 97476145 in words is "ninety-seven million, four hundred seventy-six thousand, one hundred forty-five".

Divisors: 1 5 13 65 461 2305 3253 5993 16265 29965 42289 211445 1499633 7498165 19495229 97476145