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100122031230 = 23513256723157
BaseRepresentation
bin101110100111110111…
…1001111010001111110
3100120102200021011121220
41131033233033101332
53120022214444410
6113555002334210
710143055136454
oct1351757172176
9316380234556
10100122031230
1139509304a61
12174a27ba366
139597b98080
144bbb3489d4
15290ece2070
hex174fbcf47e

100122031230 has 32 divisors (see below), whose sum is σ = 258776943264. Its totient is φ = 24645422976.

The previous prime is 100122031213. The next prime is 100122031253. The reversal of 100122031230 is 32130221001.

It is a super-2 number, since 2×1001220312302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128361189 + ... + 128361968.

It is an arithmetic number, because the mean of its divisors is an integer number (8086779477).

Almost surely, 2100122031230 is an apocalyptic number.

100122031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100122031230 is an abundant number, since it is smaller than the sum of its proper divisors (158654912034).

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

100122031230 is a wasteful number, since it uses less digits than its factorization.

100122031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256723180.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100122031230 its reverse (32130221001), we get a palindrome (132252252231).

The spelling of 100122031230 in words is "one hundred billion, one hundred twenty-two million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 256723157 513446314 770169471 1283615785 1540338942 2567231570 3337401041 3850847355 6674802082 7701694710 10012203123 16687005205 20024406246 33374010410 50061015615 100122031230