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120988898 = 21731311369
BaseRepresentation
bin1110011011000…
…10010011100010
322102122212120022
413031202103202
5221433121043
620001113442
72666250212
oct715422342
9272585508
10120988898
1162327828
1234628882
131c0b2084
14120d6242
15a94d868
hex73624e2

120988898 has 16 divisors (see below), whose sum is σ = 192789720. Its totient is φ = 56749056.

The previous prime is 120988897. The next prime is 120988943. The reversal of 120988898 is 898889021.

It can be written as a sum of positive squares in 4 ways, for example, as 86918329 + 34070569 = 9323^2 + 5837^2 .

It is not an unprimeable number, because it can be changed into a prime (120988897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4958 + ... + 16326.

Almost surely, 2120988898 is an apocalyptic number.

120988898 is a deficient number, since it is larger than the sum of its proper divisors (71800822).

120988898 is a wasteful number, since it uses less digits than its factorization.

120988898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701.

The product of its (nonzero) digits is 663552, while the sum is 53.

The square root of 120988898 is about 10999.4953520605. The cubic root of 120988898 is about 494.5936167375.

The spelling of 120988898 in words is "one hundred twenty million, nine hundred eighty-eight thousand, eight hundred ninety-eight".

Divisors: 1 2 17 34 313 626 5321 10642 11369 22738 193273 386546 3558497 7116994 60494449 120988898