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122054240 = 2557119907
BaseRepresentation
bin1110100011001…
…10011001100000
322111122222221102
413101212121200
5222221213430
620040013532
73011305160
oct721463140
9274588842
10122054240
1162995180
1234a612a8
131c395c59
14122d25a0
15aaae345
hex7466660

122054240 has 96 divisors (see below), whose sum is σ = 359541504. Its totient is φ = 38039040.

The previous prime is 122054213. The next prime is 122054249. The reversal of 122054240 is 42450221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122054249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7367 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (3745224).

Almost surely, 2122054240 is an apocalyptic number.

122054240 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 122054240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179770752).

122054240 is an abundant number, since it is smaller than the sum of its proper divisors (237487264).

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

122054240 is a wasteful number, since it uses less digits than its factorization.

122054240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940 (or 9932 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 122054240 is about 11047.8160737768. The cubic root of 122054240 is about 496.0410562616.

The spelling of 122054240 in words is "one hundred twenty-two million, fifty-four thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 70 77 80 88 110 112 140 154 160 176 220 224 280 308 352 385 440 560 616 770 880 1120 1232 1540 1760 2464 3080 6160 9907 12320 19814 39628 49535 69349 79256 99070 108977 138698 158512 198140 217954 277396 317024 346745 396280 435908 544885 554792 693490 762839 792560 871816 1089770 1109584 1386980 1525678 1585120 1743632 2179540 2219168 2773960 3051356 3487264 3814195 4359080 5547920 6102712 7628390 8718160 11095840 12205424 15256780 17436320 24410848 30513560 61027120 122054240