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121406673 = 31723294383
BaseRepresentation
bin1110011110010…
…00010011010001
322110110002122110
413033020103101
5222040003143
620014055533
73002640213
oct717102321
9273402573
10121406673
11625926a3
12347aa5a9
131c1ca28b
14121a45b3
15a9d2533
hex73c84d1

121406673 has 64 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 67888128.

The previous prime is 121406671. The next prime is 121406683. The reversal of 121406673 is 376604121.

It is not a de Polignac number, because 121406673 - 21 = 121406671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121406673.

It is not an unprimeable number, because it can be changed into a prime (121406671) 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 63 ways as a sum of consecutive naturals, for example, 1462690 + ... + 1462772.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2121406673 is an apocalyptic number.

It is an amenable number.

121406673 is a deficient number, since it is larger than the sum of its proper divisors (70193967).

121406673 is a wasteful number, since it uses less digits than its factorization.

121406673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 121406673 is about 11018.4696305794. The cubic root of 121406673 is about 495.1622404620.

The spelling of 121406673 in words is "one hundred twenty-one million, four hundred six thousand, six hundred seventy-three".

Divisors: 1 3 17 23 29 43 51 69 83 87 129 249 391 493 667 731 989 1173 1247 1411 1479 1909 2001 2193 2407 2967 3569 3741 4233 5727 7221 10707 11339 16813 21199 28681 32453 34017 40919 50439 55361 60673 63597 82087 86043 97359 103501 122757 166083 182019 246261 310503 487577 941137 1395479 1462731 1759517 2380523 2823411 4186437 5278551 7141569 40468891 121406673