Base | Representation |
---|---|
bin | 11100110001001111… |
… | …101010001000101111 |
3 | 2221201211210022220200 |
4 | 130301033222020233 |
5 | 1001231041200112 |
6 | 22105140244543 |
7 | 2142335552100 |
oct | 346117521057 |
9 | 87654708820 |
10 | 30890959407 |
11 | 12112161020 |
12 | 5ba13a0753 |
13 | 2bb3b44809 |
14 | 16d08d03a7 |
15 | c0be6bcdc |
hex | 7313ea22f |
30890959407 has 72 divisors (see below), whose sum is σ = 56952726480. Its totient is φ = 15954059520.
The previous prime is 30890959399. The next prime is 30890959469. The reversal of 30890959407 is 70495909803.
It is not a de Polignac number, because 30890959407 - 23 = 30890959399 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30890959907) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 820819 + ... + 857627.
It is an arithmetic number, because the mean of its divisors is an integer number (791010090).
Almost surely, 230890959407 is an apocalyptic number.
30890959407 is a deficient number, since it is larger than the sum of its proper divisors (26061767073).
30890959407 is a wasteful number, since it uses less digits than its factorization.
30890959407 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37013 (or 37003 counting only the distinct ones).
The product of its (nonzero) digits is 2449440, while the sum is 54.
The spelling of 30890959407 in words is "thirty billion, eight hundred ninety million, nine hundred fifty-nine thousand, four hundred seven".
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