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122685260 = 22517734943
BaseRepresentation
bin1110101000000…
…00011101001100
322112212001112112
413110000131030
5222401412020
620101323152
73016543655
oct724003514
9275761475
10122685260
1163286285
12351064b8
131c557239
141241852c
15ab862c5
hex750074c

122685260 has 48 divisors (see below), whose sum is σ = 276587136. Its totient is φ = 45545472.

The previous prime is 122685247. The next prime is 122685271. The reversal of 122685260 is 62586221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22349 + ... + 27291.

It is an arithmetic number, because the mean of its divisors is an integer number (5762232).

Almost surely, 2122685260 is an apocalyptic number.

122685260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122685260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138293568).

122685260 is an abundant number, since it is smaller than the sum of its proper divisors (153901876).

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

122685260 is a wasteful number, since it uses less digits than its factorization.

122685260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042 (or 5040 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 122685260 is about 11076.3378424459. The cubic root of 122685260 is about 496.8944308159.

The spelling of 122685260 in words is "one hundred twenty-two million, six hundred eighty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 73 85 146 170 292 340 365 730 1241 1460 2482 4943 4964 6205 9886 12410 19772 24715 24820 49430 84031 98860 168062 336124 360839 420155 721678 840310 1443356 1680620 1804195 3608390 6134263 7216780 12268526 24537052 30671315 61342630 122685260