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121677069 = 3291817727
BaseRepresentation
bin1110100000010…
…10010100001101
322110221211120010
413100022110031
5222122131234
620023543433
73005144433
oct720122415
9273854503
10121677069
1162757868
12348bab79
131c293387
1412234d53
15aa376e9
hex740a50d

121677069 has 16 divisors (see below), whose sum is σ = 168779520. Its totient is φ = 77878080.

The previous prime is 121677067. The next prime is 121677071. The reversal of 121677069 is 960776121.

It is an interprime number because it is at equal distance from previous prime (121677067) and next prime (121677071).

It is not a de Polignac number, because 121677069 - 21 = 121677067 is a prime.

It is a super-2 number, since 2×1216770692 = 29610618240861522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121677067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11884 + ... + 19610.

It is an arithmetic number, because the mean of its divisors is an integer number (10548720).

Almost surely, 2121677069 is an apocalyptic number.

It is an amenable number.

121677069 is a deficient number, since it is larger than the sum of its proper divisors (47102451).

121677069 is a wasteful number, since it uses less digits than its factorization.

121677069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7940.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 121677069 is about 11030.7329312245. The cubic root of 121677069 is about 495.5295750551.

The spelling of 121677069 in words is "one hundred twenty-one million, six hundred seventy-seven thousand, sixty-nine".

Divisors: 1 3 29 87 181 543 5249 7727 15747 23181 224083 672249 1398587 4195761 40559023 121677069