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101842830 = 23252814027
BaseRepresentation
bin1100001000111…
…11111110001110
321002122011002200
412010133332032
5202032432310
614034502330
72344435605
oct604377616
9232564080
10101842830
1152540031
122a1349a6
131813a53b
14d750a3c
158e1a9c0
hex611ff8e

101842830 has 48 divisors (see below), whose sum is σ = 265799664. Its totient is φ = 27054720.

The previous prime is 101842823. The next prime is 101842849. The reversal of 101842830 is 38248101.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101842794 and 101842803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23277 + ... + 27303.

It is an arithmetic number, because the mean of its divisors is an integer number (5537493).

Almost surely, 2101842830 is an apocalyptic number.

101842830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101842830 is an abundant number, since it is smaller than the sum of its proper divisors (163956834).

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

101842830 is a wasteful number, since it uses less digits than its factorization.

101842830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 101842830 is about 10091.7208641539. The cubic root of 101842830 is about 466.9927658382.

The spelling of 101842830 in words is "one hundred one million, eight hundred forty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 281 562 843 1405 1686 2529 2810 4027 4215 5058 8054 8430 12081 12645 20135 24162 25290 36243 40270 60405 72486 120810 181215 362430 1131587 2263174 3394761 5657935 6789522 10184283 11315870 16973805 20368566 33947610 50921415 101842830