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122700930 = 23511438647
BaseRepresentation
bin1110101000001…
…00010010000010
322112212212000220
413110010102002
5222402412210
620101523510
73016640442
oct724042202
9275785026
10122700930
1163297030
1235113596
131c561401
1412420122
15ab8ac70
hex7504482

122700930 has 64 divisors (see below), whose sum is σ = 328762368. Its totient is φ = 29050560.

The previous prime is 122700863. The next prime is 122700971. The reversal of 122700930 is 39007221.

It is a self number, because there is not a number n which added to its sum of digits gives 122700930.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9867 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (5136912).

Almost surely, 2122700930 is an apocalyptic number.

122700930 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 122700930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164381184).

122700930 is an abundant number, since it is smaller than the sum of its proper divisors (206061438).

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

122700930 is a wasteful number, since it uses less digits than its factorization.

122700930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 122700930 is about 11077.0451836218. The cubic root of 122700930 is about 496.9155852296.

The spelling of 122700930 in words is "one hundred twenty-two million, seven hundred thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 43 55 66 86 110 129 165 215 258 330 430 473 645 946 1290 1419 2365 2838 4730 7095 8647 14190 17294 25941 43235 51882 86470 95117 129705 190234 259410 285351 371821 475585 570702 743642 951170 1115463 1426755 1859105 2230926 2853510 3718210 4090031 5577315 8180062 11154630 12270093 20450155 24540186 40900310 61350465 122700930