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121952208 = 2437362953
BaseRepresentation
bin1110100010011…
…01011111010000
322111110210222110
413101031133100
5222204432313
620033505320
73010401540
oct721153720
9274423873
10121952208
1162925554
1234a12240
131c35b691
14122a7320
15aa8dec3
hex744d7d0

121952208 has 40 divisors (see below), whose sum is σ = 360050368. Its totient is φ = 34843392.

The previous prime is 121952191. The next prime is 121952209. The reversal of 121952208 is 802259121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121952209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181141 + ... + 181812.

Almost surely, 2121952208 is an apocalyptic number.

It is an amenable number.

121952208 is an abundant number, since it is smaller than the sum of its proper divisors (238098160).

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

121952208 is a wasteful number, since it uses less digits than its factorization.

121952208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362971 (or 362965 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 121952208 is about 11043.1973630828. The cubic root of 121952208 is about 495.9027948603.

The spelling of 121952208 in words is "one hundred twenty-one million, nine hundred fifty-two thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 362953 725906 1088859 1451812 2177718 2540671 2903624 4355436 5081342 5807248 7622013 8710872 10162684 15244026 17421744 20325368 30488052 40650736 60976104 121952208