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121048772 = 221317197207
BaseRepresentation
bin1110011011100…
…00111011000100
322102202220200212
413031300323010
5221442030042
620002254552
72666616605
oct715607304
9272686625
10121048772
1162368809
1234657458
131c1033c0
141210ddac
15a961482
hex7370ec4

121048772 has 48 divisors (see below), whose sum is σ = 254298240. Its totient is φ = 49807872.

The previous prime is 121048771. The next prime is 121048783. The reversal of 121048772 is 277840121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121048771) 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, 13193 + ... + 20399.

It is an arithmetic number, because the mean of its divisors is an integer number (5297880).

Almost surely, 2121048772 is an apocalyptic number.

It is an amenable number.

121048772 is an abundant number, since it is smaller than the sum of its proper divisors (133249468).

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

121048772 is a wasteful number, since it uses less digits than its factorization.

121048772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260 (or 7258 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 121048772 is about 11002.2166857411. The cubic root of 121048772 is about 494.6751901025.

Adding to 121048772 its reverse (277840121), we get a palindrome (398888893).

The spelling of 121048772 in words is "one hundred twenty-one million, forty-eight thousand, seven hundred seventy-two".

Divisors: 1 2 4 13 17 19 26 34 38 52 68 76 221 247 323 442 494 646 884 988 1292 4199 7207 8398 14414 16796 28828 93691 122519 136933 187382 245038 273866 374764 490076 547732 1592747 1780129 2327861 3185494 3560258 4655722 6370988 7120516 9311444 30262193 60524386 121048772