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123494641 = 3731710529
BaseRepresentation
bin1110101110001…
…10000011110001
322121101011210121
413113012003301
5223103312031
620130530241
73026454454
oct727060361
9277334717
10123494641
1163789396
1235436981
131c77b76a
141258949b
15ac96011
hex75c60f1

123494641 has 8 divisors (see below), whose sum is σ = 127244520. Its totient is φ = 119766528.

The previous prime is 123494629. The next prime is 123494719. The reversal of 123494641 is 146494321.

It can be written as a sum of positive squares in 4 ways, for example, as 29811600 + 93683041 = 5460^2 + 9679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123494641 - 215 = 123461873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123494597 and 123494606.

It is not an unprimeable number, because it can be changed into a prime (123497641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6465 + ... + 16993.

It is an arithmetic number, because the mean of its divisors is an integer number (15905565).

Almost surely, 2123494641 is an apocalyptic number.

It is an amenable number.

123494641 is a deficient number, since it is larger than the sum of its proper divisors (3749879).

123494641 is a wasteful number, since it uses less digits than its factorization.

123494641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10883.

The product of its digits is 20736, while the sum is 34.

The square root of 123494641 is about 11112.8142700218. The cubic root of 123494641 is about 497.9847430582.

The spelling of 123494641 in words is "one hundred twenty-three million, four hundred ninety-four thousand, six hundred forty-one".

Divisors: 1 37 317 10529 11729 389573 3337693 123494641