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297296690 = 25291025161
BaseRepresentation
bin10001101110000…
…110001100110010
3202201102020101112
4101232012030302
51102101443230
645300033322
710236660125
oct2156061462
9681366345
10297296690
111428a8449
1283692842
1349792502
142b6ac3bc
151b177d95
hex11b86332

297296690 has 16 divisors (see below), whose sum is σ = 553587480. Its totient is φ = 114817920.

The previous prime is 297296683. The next prime is 297296707. The reversal of 297296690 is 96692792.

297296690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 150087001 + 147209689 = 12251^2 + 12133^2 .

It is a super-2 number, since 2×2972966902 = 176770643769912200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 512291 + ... + 512870.

Almost surely, 2297296690 is an apocalyptic number.

297296690 is a deficient number, since it is larger than the sum of its proper divisors (256290790).

297296690 is a wasteful number, since it uses less digits than its factorization.

297296690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025197.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 297296690 is about 17242.2936409284. The cubic root of 297296690 is about 667.4161191103.

The spelling of 297296690 in words is "two hundred ninety-seven million, two hundred ninety-six thousand, six hundred ninety".

Divisors: 1 2 5 10 29 58 145 290 1025161 2050322 5125805 10251610 29729669 59459338 148648345 297296690