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109237397 = 31612947
BaseRepresentation
bin1101000001011…
…01010010010101
321121112211112112
412200231102111
5210431044042
614501200405
72464334243
oct640552225
9247484475
10109237397
1156730745
1230700105
1319829219
1410717793
1598cb982
hex682d495

109237397 has 12 divisors (see below), whose sum is σ = 114761088. Its totient is φ = 103870800.

The previous prime is 109237391. The next prime is 109237411. The reversal of 109237397 is 793732901.

It is not a de Polignac number, because 109237397 - 26 = 109237333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109237391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114878 + ... + 115824.

It is an arithmetic number, because the mean of its divisors is an integer number (9563424).

Almost surely, 2109237397 is an apocalyptic number.

It is an amenable number.

109237397 is a deficient number, since it is larger than the sum of its proper divisors (5523691).

109237397 is an frugal number, since it uses more digits than its factorization.

109237397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 109237397 is about 10451.6695795457. The cubic root of 109237397 is about 478.0321590964.

The spelling of 109237397 in words is "one hundred nine million, two hundred thirty-seven thousand, three hundred ninety-seven".

Divisors: 1 31 61 947 1891 3721 29357 57767 115351 1790777 3523787 109237397