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109431254 = 2107511361
BaseRepresentation
bin1101000010111…
…00100111010110
321121220200110102
412201130213112
5211003300004
614505254102
72466102362
oct641344726
9247820412
10109431254
1156853359
1230794332
131989652a
14107682a2
15991911e
hex685c9d6

109431254 has 8 divisors (see below), whose sum is σ = 165681288. Its totient is φ = 54204160.

The previous prime is 109431251. The next prime is 109431277. The reversal of 109431254 is 452134901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109431251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255467 + ... + 255894.

It is an arithmetic number, because the mean of its divisors is an integer number (20710161).

Almost surely, 2109431254 is an apocalyptic number.

109431254 is a deficient number, since it is larger than the sum of its proper divisors (56250034).

109431254 is a wasteful number, since it uses less digits than its factorization.

109431254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511470.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 109431254 is about 10460.9394415607. The cubic root of 109431254 is about 478.3147702358.

The spelling of 109431254 in words is "one hundred nine million, four hundred thirty-one thousand, two hundred fifty-four".

Divisors: 1 2 107 214 511361 1022722 54715627 109431254