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109471974 = 23313715907
BaseRepresentation
bin1101000011001…
…10100011100110
321121222202022120
412201212203212
5211011100344
614510210410
72466332163
oct641464346
9247882276
10109471974
1156880a07
12307b3a06
13198abc21
141077906a
159926219
hex68668e6

109471974 has 32 divisors (see below), whose sum is σ = 232129536. Its totient is φ = 34356960.

The previous prime is 109471949. The next prime is 109471987. The reversal of 109471974 is 479174901.

It is a super-2 number, since 2×1094719742 = 23968226182913352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072 + ... + 14835.

It is an arithmetic number, because the mean of its divisors is an integer number (7254048).

Almost surely, 2109471974 is an apocalyptic number.

109471974 is an abundant number, since it is smaller than the sum of its proper divisors (122657562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109471974 is a wasteful number, since it uses less digits than its factorization.

109471974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 109471974 is about 10462.8855484517. The cubic root of 109471974 is about 478.3740907723.

It can be divided in two parts, 10947 and 1974, that added together give a palindrome (12921).

The spelling of 109471974 in words is "one hundred nine million, four hundred seventy-one thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 31 37 62 74 93 111 186 222 1147 2294 3441 6882 15907 31814 47721 95442 493117 588559 986234 1177118 1479351 1765677 2958702 3531354 18245329 36490658 54735987 109471974