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161062297 = 11196171249
BaseRepresentation
bin10011001100110…
…01110110011001
3102020001210221021
421212121312121
5312212443142
623552042441
73664002244
oct1146316631
9366053837
10161062297
1182a08540
1245b33421
13274a3146
141756825b
15e217267
hex9999d99

161062297 has 16 divisors (see below), whose sum is σ = 185400000. Its totient is φ = 138378240.

The previous prime is 161062249. The next prime is 161062303. The reversal of 161062297 is 792260161.

It is not a de Polignac number, because 161062297 - 219 = 160538009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161062207) 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, 128329 + ... + 129577.

It is an arithmetic number, because the mean of its divisors is an integer number (11587500).

Almost surely, 2161062297 is an apocalyptic number.

It is an amenable number.

161062297 is a deficient number, since it is larger than the sum of its proper divisors (24337703).

161062297 is a wasteful number, since it uses less digits than its factorization.

161062297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 161062297 is about 12691.0321487261. The cubic root of 161062297 is about 544.0823398018.

The spelling of 161062297 in words is "one hundred sixty-one million, sixty-two thousand, two hundred ninety-seven".

Divisors: 1 11 19 209 617 1249 6787 11723 13739 23731 128953 261041 770633 8476963 14642027 161062297