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10233113661 = 326131854833
BaseRepresentation
bin10011000011111000…
…01110110000111101
3222102011102000221200
421201330032300331
5131424134114121
64411231050113
7511405013421
oct114174166075
928364360850
1010233113661
114381364831
121b97070939
13c71099a54
146d10c4b81
153ed5a8a26
hex261f0ec3d

10233113661 has 12 divisors (see below), whose sum is σ = 14805284988. Its totient is φ = 6810943104.

The previous prime is 10233113629. The next prime is 10233113663. The reversal of 10233113661 is 16631133201.

It can be written as a sum of positive squares in 2 ways, for example, as 1859765625 + 8373348036 = 43125^2 + 91506^2 .

It is not a de Polignac number, because 10233113661 - 25 = 10233113629 is a prime.

It is a super-3 number, since 3×102331136613 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10233113663) 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, 921900 + ... + 932933.

It is an arithmetic number, because the mean of its divisors is an integer number (1233773749).

Almost surely, 210233113661 is an apocalyptic number.

It is an amenable number.

10233113661 is a deficient number, since it is larger than the sum of its proper divisors (4572171327).

10233113661 is a wasteful number, since it uses less digits than its factorization.

10233113661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855452 (or 1855449 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 10233113661 its reverse (16631133201), we get a palindrome (26864246862).

The spelling of 10233113661 in words is "ten billion, two hundred thirty-three million, one hundred thirteen thousand, six hundred sixty-one".

Divisors: 1 3 9 613 1839 5517 1854833 5564499 16693497 1137012629 3411037887 10233113661