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121207950 = 23252269351
BaseRepresentation
bin1110011100101…
…11110010001110
322110002000001100
413032113302032
5222012123300
620005523530
73001151643
oct716276216
9273060040
10121207950
1162467366
12347135a6
131c15a9a6
1412151dca
15a993700
hex7397c8e

121207950 has 36 divisors (see below), whose sum is σ = 325646568. Its totient is φ = 32322000.

The previous prime is 121207939. The next prime is 121207951. The reversal of 121207950 is 59702121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121207951) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 134226 + ... + 135125.

It is an arithmetic number, because the mean of its divisors is an integer number (9045738).

Almost surely, 2121207950 is an apocalyptic number.

121207950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121207950 is an abundant number, since it is smaller than the sum of its proper divisors (204438618).

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

121207950 is a wasteful number, since it uses less digits than its factorization.

121207950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269369 (or 269361 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 121207950 is about 11009.4482150560. The cubic root of 121207950 is about 494.8919262069.

The spelling of 121207950 in words is "one hundred twenty-one million, two hundred seven thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 269351 538702 808053 1346755 1616106 2424159 2693510 4040265 4848318 6733775 8080530 12120795 13467550 20201325 24241590 40402650 60603975 121207950