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109223401 = 7214932
BaseRepresentation
bin1101000001010…
…01110111101001
321121112010100011
412200221313221
5210430122101
614501011521
72464245400
oct640516751
9247463304
10109223401
1156721181
12306b3ba1
1319822a41
1410712637
1598c7751
hex6829de9

109223401 has 9 divisors (see below), whose sum is σ = 127140951. Its totient is φ = 93557352.

The previous prime is 109223399. The next prime is 109223417. The reversal of 109223401 is 104322901.

The square root of 109223401 is 10451.

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

It can be written as a sum of positive squares in only one way, i.e., 95355225 + 13868176 = 9765^2 + 3724^2 .

It is not a de Polignac number, because 109223401 - 21 = 109223399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109223431) 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, 72411 + ... + 73903.

Almost surely, 2109223401 is an apocalyptic number.

109223401 is the 10451-st square number.

109223401 is the 5226-th centered octagonal number.

It is an amenable number.

109223401 is a deficient number, since it is larger than the sum of its proper divisors (17917550).

109223401 is an frugal number, since it uses more digits than its factorization.

109223401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The cubic root of 109223401 is about 478.0117423281.

The spelling of 109223401 in words is "one hundred nine million, two hundred twenty-three thousand, four hundred one".

Divisors: 1 7 49 1493 10451 73157 2229049 15603343 109223401