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122684481 = 3261223469
BaseRepresentation
bin1110101000000…
…00010001000001
322112212000110200
413110000101001
5222401400411
620101315413
73016541463
oct724002101
9275760420
10122684481
1163285737
1235105b69
131c556a8a
1412418133
15ab85e56
hex7500441

122684481 has 12 divisors (see below), whose sum is σ = 180116820. Its totient is φ = 80448480.

The previous prime is 122684479. The next prime is 122684483. The reversal of 122684481 is 184486221.

It is an interprime number because it is at equal distance from previous prime (122684479) and next prime (122684483).

It can be written as a sum of positive squares in 2 ways, for example, as 15872256 + 106812225 = 3984^2 + 10335^2 .

It is not a de Polignac number, because 122684481 - 21 = 122684479 is a prime.

It is a super-2 number, since 2×1226844812 = 30102963756478722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (122684483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111186 + ... + 112283.

It is an arithmetic number, because the mean of its divisors is an integer number (15009735).

Almost surely, 2122684481 is an apocalyptic number.

It is an amenable number.

122684481 is a deficient number, since it is larger than the sum of its proper divisors (57432339).

122684481 is a wasteful number, since it uses less digits than its factorization.

122684481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223536 (or 223533 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 122684481 is about 11076.3026773378. The cubic root of 122684481 is about 496.8933791232.

The spelling of 122684481 in words is "one hundred twenty-two million, six hundred eighty-four thousand, four hundred eighty-one".

Divisors: 1 3 9 61 183 549 223469 670407 2011221 13631609 40894827 122684481