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120099690 = 23251334441
BaseRepresentation
bin1110010100010…
…01001101101010
322100222200210200
413022021031222
5221221142230
615530053030
72655554604
oct712111552
9270880720
10120099690
116187a747
123427a176
131bb60409
1411d44174
15a825160
hex728936a

120099690 has 24 divisors (see below), whose sum is σ = 312259428. Its totient is φ = 32026560.

The previous prime is 120099653. The next prime is 120099691. The reversal of 120099690 is 96990021.

It can be written as a sum of positive squares in 2 ways, for example, as 120099681 + 9 = 10959^2 + 3^2 .

It is a super-2 number, since 2×1200996902 = 28847871076192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120099691) 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 11 ways as a sum of consecutive naturals, for example, 667131 + ... + 667310.

Almost surely, 2120099690 is an apocalyptic number.

120099690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120099690 is an abundant number, since it is smaller than the sum of its proper divisors (192159738).

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

120099690 is a wasteful number, since it uses less digits than its factorization.

120099690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334454 (or 1334451 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 120099690 is about 10959.0004106214. Note that the first 3 decimals coincide. The cubic root of 120099690 is about 493.3789641057.

The spelling of 120099690 in words is "one hundred twenty million, ninety-nine thousand, six hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1334441 2668882 4003323 6672205 8006646 12009969 13344410 20016615 24019938 40033230 60049845 120099690