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121232763 = 3217792371
BaseRepresentation
bin1110011100111…
…01110101111011
322110010021002100
413032131311323
5222013422023
620010234443
73001314201
oct716356573
9273107070
10121232763
1162483a73
1234725a23
131c169082
141215b071
15a99ac43
hex739dd7b

121232763 has 12 divisors (see below), whose sum is σ = 185415048. Its totient is φ = 76067520.

The previous prime is 121232753. The next prime is 121232773. The reversal of 121232763 is 367232121.

It is an interprime number because it is at equal distance from previous prime (121232753) and next prime (121232773).

It is a de Polignac number, because none of the positive numbers 2k-121232763 is a prime.

It is a super-2 number, since 2×1212327632 = 29394765649228338, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (121232753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396033 + ... + 396338.

It is an arithmetic number, because the mean of its divisors is an integer number (15451254).

Almost surely, 2121232763 is an apocalyptic number.

121232763 is a deficient number, since it is larger than the sum of its proper divisors (64182285).

121232763 is a wasteful number, since it uses less digits than its factorization.

121232763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792394 (or 792391 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 121232763 is about 11010.5750531024. The cubic root of 121232763 is about 494.9256943866.

Adding to 121232763 its reverse (367232121), we get a palindrome (488464884).

The spelling of 121232763 in words is "one hundred twenty-one million, two hundred thirty-two thousand, seven hundred sixty-three".

Divisors: 1 3 9 17 51 153 792371 2377113 7131339 13470307 40410921 121232763