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1094121840 = 2435719151227
BaseRepresentation
bin100000100110110…
…1111100101110000
32211020210011000010
41001031233211300
54220043344330
6300322454520
736053611410
oct10115574560
92736704003
101094121840
1151166aa29
12266504440
131458a3296
14a544c640
15660c43b0
hex4136f970

1094121840 has 320 divisors, whose sum is σ = 4125450240. Its totient is φ = 234316800.

The previous prime is 1094121839. The next prime is 1094121841. The reversal of 1094121840 is 481214901.

It is an interprime number because it is at equal distance from previous prime (1094121839) and next prime (1094121841).

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

It is a junction number, because it is equal to n+sod(n) for n = 1094121798 and 1094121807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1094121841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4819807 + ... + 4820033.

It is an arithmetic number, because the mean of its divisors is an integer number (12892032).

Almost surely, 21094121840 is an apocalyptic number.

1094121840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1094121840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062725120).

1094121840 is an abundant number, since it is smaller than the sum of its proper divisors (3031328400).

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

1094121840 is a wasteful number, since it uses less digits than its factorization.

1094121840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1094121840 is about 33077.5126029755. The cubic root of 1094121840 is about 1030.4380704833.

The spelling of 1094121840 in words is "one billion, ninety-four million, one hundred twenty-one thousand, eight hundred forty".