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1097206830 = 233522318223
BaseRepresentation
bin100000101100110…
…0000110000101110
32211110120212211000
41001121200300232
54221341104310
6300512541130
736122050506
oct10131406056
92743525730
101097206830
11513387805
122675517a6
13146413515
14a5a12a06
15664d34c0
hex41660c2e

1097206830 has 64 divisors (see below), whose sum is σ = 2939166720. Its totient is φ = 291260448.

The previous prime is 1097206829. The next prime is 1097206837. The reversal of 1097206830 is 386027901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097206837) 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, 51099 + ... + 69321.

It is an arithmetic number, because the mean of its divisors is an integer number (45924480).

Almost surely, 21097206830 is an apocalyptic number.

1097206830 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 1097206830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469583360).

1097206830 is an abundant number, since it is smaller than the sum of its proper divisors (1841959890).

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

1097206830 is a wasteful number, since it uses less digits than its factorization.

1097206830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18462 (or 18456 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1097206830 is about 33124.1125164132. The cubic root of 1097206830 is about 1031.4056373363.

The spelling of 1097206830 in words is "one billion, ninety-seven million, two hundred six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 223 270 446 669 1115 1338 2007 2230 3345 4014 6021 6690 10035 12042 18223 20070 30105 36446 54669 60210 91115 109338 164007 182230 273345 328014 492021 546690 820035 984042 1640070 2460105 4063729 4920210 8127458 12191187 20318645 24382374 36573561 40637290 60955935 73147122 109720683 121911870 182867805 219441366 365735610 548603415 1097206830