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109427430 = 23571573319
BaseRepresentation
bin1101000010110…
…11101011100110
321121220111012210
412201123223212
5211003134210
614505224250
72466055260
oct641335346
9247814183
10109427430
11568504a2
1230792086
1319894878
1410766b30
159917e20
hex685bae6

109427430 has 64 divisors (see below), whose sum is σ = 302146560. Its totient is φ = 24845184.

The previous prime is 109427429. The next prime is 109427431. The reversal of 109427430 is 34724901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (109427429) and next prime (109427431).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109427431) 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, 31311 + ... + 34629.

It is an arithmetic number, because the mean of its divisors is an integer number (4721040).

Almost surely, 2109427430 is an apocalyptic number.

109427430 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 109427430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151073280).

109427430 is an abundant number, since it is smaller than the sum of its proper divisors (192719130).

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

109427430 is a wasteful number, since it uses less digits than its factorization.

109427430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 109427430 is about 10460.7566647925. The cubic root of 109427430 is about 478.3091987105.

The spelling of 109427430 in words is "one hundred nine million, four hundred twenty-seven thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 157 210 314 471 785 942 1099 1570 2198 2355 3297 3319 4710 5495 6594 6638 9957 10990 16485 16595 19914 23233 32970 33190 46466 49785 69699 99570 116165 139398 232330 348495 521083 696990 1042166 1563249 2605415 3126498 3647581 5210830 7295162 7816245 10942743 15632490 18237905 21885486 36475810 54713715 109427430