Base | Representation |
---|---|
bin | 1011001011001… |
… | …10011011101111 |
3 | 20112101121222201 |
4 | 11211212123233 |
5 | 142444232311 |
6 | 13145122331 |
7 | 2215541500 |
oct | 545463357 |
9 | 215347881 |
10 | 93742831 |
11 | 48a08416 |
12 | 274893a7 |
13 | 16562740 |
14 | c642ba7 |
15 | 836a9c1 |
hex | 59666ef |
93742831 has 12 divisors (see below), whose sum is σ = 117436872. Its totient is φ = 74169648.
The previous prime is 93742829. The next prime is 93742861. The reversal of 93742831 is 13824739.
It is not a de Polignac number, because 93742831 - 21 = 93742829 is a prime.
It is a super-2 number, since 2×937428312 = 17575436727789122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (93742861) 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 11 ways as a sum of consecutive naturals, for example, 72945 + ... + 74218.
It is an arithmetic number, because the mean of its divisors is an integer number (9786406).
Almost surely, 293742831 is an apocalyptic number.
93742831 is a gapful number since it is divisible by the number (91) formed by its first and last digit.
93742831 is a deficient number, since it is larger than the sum of its proper divisors (23694041).
93742831 is a wasteful number, since it uses less digits than its factorization.
93742831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 147190 (or 147183 counting only the distinct ones).
The product of its digits is 36288, while the sum is 37.
The square root of 93742831 is about 9682.0881528728. The cubic root of 93742831 is about 454.2685684128.
The spelling of 93742831 in words is "ninety-three million, seven hundred forty-two thousand, eight hundred thirty-one".
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