Base | Representation |
---|---|
bin | 101111111011111011… |
… | …1111001110101101110 |
3 | 100211201021011212210201 |
4 | 1133313313321311232 |
5 | 3141311333444430 |
6 | 115142531024114 |
7 | 10303006666654 |
oct | 1376767716556 |
9 | 324637155721 |
10 | 102942874990 |
11 | 3a72662969a |
12 | 17b4b43b03a |
13 | 99274127a7 |
14 | 4da7c36dd4 |
15 | 2a277978ca |
hex | 17f7df9d6e |
102942874990 has 16 divisors (see below), whose sum is σ = 191686733280. Its totient is φ = 39757248160.
The previous prime is 102942874987. The next prime is 102942875003. The reversal of 102942874990 is 99478249201.
It is a happy number.
It is a super-2 number, since 2×1029428749902 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177487426 + ... + 177488005.
It is an arithmetic number, because the mean of its divisors is an integer number (11980420830).
Almost surely, 2102942874990 is an apocalyptic number.
102942874990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
102942874990 is a deficient number, since it is larger than the sum of its proper divisors (88743858290).
102942874990 is a wasteful number, since it uses less digits than its factorization.
102942874990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 354975467.
The product of its (nonzero) digits is 2612736, while the sum is 55.
The spelling of 102942874990 in words is "one hundred two billion, nine hundred forty-two million, eight hundred seventy-four thousand, nine hundred ninety".
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