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109393830 = 232571319237
BaseRepresentation
bin1101000010100…
…11011110100110
321121211210010100
412201103132212
5211001100310
614504404530
72465555310
oct641233646
9247753110
10109393830
1156828227
1230776746
13198824a0
14107587b0
15990cec0
hex68537a6

109393830 has 288 divisors, whose sum is σ = 379439424. Its totient is φ = 21275136.

The previous prime is 109393799. The next prime is 109393841. The reversal of 109393830 is 38393901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2956572 + ... + 2956608.

It is an arithmetic number, because the mean of its divisors is an integer number (1317498).

Almost surely, 2109393830 is an apocalyptic number.

109393830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109393830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189719712).

109393830 is an abundant number, since it is smaller than the sum of its proper divisors (270045594).

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

109393830 is a wasteful number, since it uses less digits than its factorization.

109393830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 109393830 is about 10459.1505391212. The cubic root of 109393830 is about 478.2602383044.

The spelling of 109393830 in words is "one hundred nine million, three hundred ninety-three thousand, eight hundred thirty".