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122931701 = 1033311897
BaseRepresentation
bin1110101001111…
…00100111110101
322120022120120222
413110330213311
5222432303301
620110504125
73021621314
oct724744765
9276276528
10122931701
1163434452
1235205045
131c612469
141248027b
15abd431b
hex753c9f5

122931701 has 4 divisors (see below), whose sum is σ = 122953932. Its totient is φ = 122909472.

The previous prime is 122931661. The next prime is 122931713. The reversal of 122931701 is 107139221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 111809476 + 11122225 = 10574^2 + 3335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122931701 is a prime.

It is a super-2 number, since 2×1229317012 = 30224406221506802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122931001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4385 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (30738483).

Almost surely, 2122931701 is an apocalyptic number.

It is an amenable number.

122931701 is a deficient number, since it is larger than the sum of its proper divisors (22231).

122931701 is a wasteful number, since it uses less digits than its factorization.

122931701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22230.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 122931701 is about 11087.4569221260. The cubic root of 122931701 is about 497.2269164486.

The spelling of 122931701 in words is "one hundred twenty-two million, nine hundred thirty-one thousand, seven hundred one".

Divisors: 1 10333 11897 122931701