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109412898 = 23743471289
BaseRepresentation
bin1101000010110…
…00001000100010
321121212202021120
412201120020202
5211002203043
614505033110
72465665020
oct641301042
9247782246
10109412898
1156840591
1230785796
131988b07a
1410761710
159913983
hex6858222

109412898 has 64 divisors (see below), whose sum is σ = 261550080. Its totient is φ = 29860992.

The previous prime is 109412881. The next prime is 109412899. The reversal of 109412898 is 898214901.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (109412899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84238 + ... + 85526.

It is an arithmetic number, because the mean of its divisors is an integer number (4086720).

Almost surely, 2109412898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109412898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130775040).

109412898 is an abundant number, since it is smaller than the sum of its proper divisors (152137182).

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

109412898 is a wasteful number, since it uses less digits than its factorization.

109412898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 109412898 is about 10460.0620457051. The cubic root of 109412898 is about 478.2880245650.

The spelling of 109412898 in words is "one hundred nine million, four hundred twelve thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 43 47 86 94 129 141 258 282 301 329 602 658 903 987 1289 1806 1974 2021 2578 3867 4042 6063 7734 9023 12126 14147 18046 27069 28294 42441 54138 55427 60583 84882 110854 121166 166281 181749 332562 363498 387989 424081 775978 848162 1163967 1272243 2327934 2544486 2605069 5210138 7815207 15630414 18235483 36470966 54706449 109412898