Base | Representation |
---|---|
bin | 111001100001111… |
… | …0001100110010111 |
3 | 11222112022221001010 |
4 | 1303003301212113 |
5 | 12423133310211 |
6 | 515314303303 |
7 | 65556604134 |
oct | 16303614627 |
9 | 4875287033 |
10 | 1930369431 |
11 | 900709141 |
12 | 45a587b33 |
13 | 249c07a43 |
14 | 14453158b |
15 | b470b4a6 |
hex | 730f1997 |
1930369431 has 12 divisors (see below), whose sum is σ = 2734134632. Its totient is φ = 1211211648.
The previous prime is 1930369409. The next prime is 1930369447. The reversal of 1930369431 is 1349630391.
It is not a de Polignac number, because 1930369431 - 26 = 1930369367 is a prime.
It is a super-2 number, since 2×19303694312 = 7452652280278527522, which contains 22 as substring.
It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1930369431.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1930369531) 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, 1112380 + ... + 1114113.
Almost surely, 21930369431 is an apocalyptic number.
1930369431 is a deficient number, since it is larger than the sum of its proper divisors (803765201).
1930369431 is a wasteful number, since it uses less digits than its factorization.
1930369431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2226530 (or 2226513 counting only the distinct ones).
The product of its (nonzero) digits is 52488, while the sum is 39.
The square root of 1930369431 is about 43935.9696717849. The cubic root of 1930369431 is about 1245.1265025246.
The spelling of 1930369431 in words is "one billion, nine hundred thirty million, three hundred sixty-nine thousand, four hundred thirty-one".
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