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122102130 = 2358349037
BaseRepresentation
bin1110100011100…
…10000101110010
322111202102122010
413101302011302
5222224232010
620041023350
73011564613
oct721620562
9274672563
10122102130
1162a18157
1234a84b56
131c3b19a7
1412305c0a
15aabd620
hex7472172

122102130 has 32 divisors (see below), whose sum is σ = 296581824. Its totient is φ = 32167616.

The previous prime is 122102129. The next prime is 122102137. The reversal of 122102130 is 31201221.

It is not an unprimeable number, because it can be changed into a prime (122102137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22029 + ... + 27008.

It is an arithmetic number, because the mean of its divisors is an integer number (9268182).

Almost surely, 2122102130 is an apocalyptic number.

122102130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122102130 is an abundant number, since it is smaller than the sum of its proper divisors (174479694).

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

122102130 is a wasteful number, since it uses less digits than its factorization.

122102130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49130.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122102130 is about 11049.9832579059. The cubic root of 122102130 is about 496.1059244161.

Adding to 122102130 its reverse (31201221), we get a palindrome (153303351).

Subtracting from 122102130 its reverse (31201221), we obtain a palindrome (90900909).

The spelling of 122102130 in words is "one hundred twenty-two million, one hundred two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 83 166 249 415 498 830 1245 2490 49037 98074 147111 245185 294222 490370 735555 1471110 4070071 8140142 12210213 20350355 24420426 40700710 61051065 122102130