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109851361 = 4722232
BaseRepresentation
bin1101000110000…
…11001011100001
321122201000201221
412203003023201
5211110220421
614522255041
72502502234
oct643031341
9248630657
10109851361
115700aa54
1230957481
13199b2809
141083741b
15999d841
hex68c32e1

109851361 has 9 divisors (see below), whose sum is σ = 112743921. Its totient is φ = 107031972.

The previous prime is 109851353. The next prime is 109851373. The reversal of 109851361 is 163158901.

The square root of 109851361 is 10481.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 109851361 - 23 = 109851353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109851311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 492496 + ... + 492718.

Almost surely, 2109851361 is an apocalyptic number.

109851361 is the 10481-st square number.

109851361 is the 5241-st centered octagonal number.

It is an amenable number.

109851361 is a deficient number, since it is larger than the sum of its proper divisors (2892560).

109851361 is an frugal number, since it uses more digits than its factorization.

109851361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The cubic root of 109851361 is about 478.9260727113.

The spelling of 109851361 in words is "one hundred nine million, eight hundred fifty-one thousand, three hundred sixty-one".

Divisors: 1 47 223 2209 10481 49729 492607 2337263 109851361