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122102630 = 25132397421
BaseRepresentation
bin1110100011100…
…10001101100110
322111202110022122
413101302031212
5222224241010
620041025542
73011566226
oct721621546
9274673278
10122102630
1162a18571
1234a852b2
131c3b1ca0
1412306086
15aabd855
hex7472366

122102630 has 64 divisors (see below), whose sum is σ = 250121088. Its totient is φ = 42577920.

The previous prime is 122102623. The next prime is 122102639. The reversal of 122102630 is 36201221.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122102599 and 122102608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102639) 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, 289820 + ... + 290240.

It is an arithmetic number, because the mean of its divisors is an integer number (3908142).

Almost surely, 2122102630 is an apocalyptic number.

122102630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122102630 is an abundant number, since it is smaller than the sum of its proper divisors (128018458).

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

122102630 is a wasteful number, since it uses less digits than its factorization.

122102630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 122102630 is about 11050.0058823514. The cubic root of 122102630 is about 496.1066015887.

Adding to 122102630 its reverse (36201221), we get a palindrome (158303851).

The spelling of 122102630 in words is "one hundred twenty-two million, one hundred two thousand, six hundred thirty".

Divisors: 1 2 5 10 13 23 26 46 65 97 115 130 194 230 299 421 485 598 842 970 1261 1495 2105 2231 2522 2990 4210 4462 5473 6305 9683 10946 11155 12610 19366 22310 27365 29003 40837 48415 54730 58006 81674 96830 125879 145015 204185 251758 290030 408370 530881 629395 939251 1061762 1258790 1878502 2654405 4696255 5308810 9392510 12210263 24420526 61051315 122102630