Base | Representation |
---|---|
bin | 1110110000110100… |
… | …10101111001111100 |
3 | 202110100200212222220 |
4 | 13120122111321330 |
5 | 112212443021140 |
6 | 3350244205340 |
7 | 400256526666 |
oct | 73032257174 |
9 | 22410625886 |
10 | 7925751420 |
11 | 33a7975394 |
12 | 1652399850 |
13 | 994047852 |
14 | 55289b536 |
15 | 315c30bd0 |
hex | 1d8695e7c |
7925751420 has 48 divisors (see below), whose sum is σ = 22339097088. Its totient is φ = 2099534400.
The previous prime is 7925751419. The next prime is 7925751437. The reversal of 7925751420 is 241575297.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 428344 + ... + 446463.
It is an arithmetic number, because the mean of its divisors is an integer number (465397856).
Almost surely, 27925751420 is an apocalyptic number.
It is an amenable number.
7925751420 is an abundant number, since it is smaller than the sum of its proper divisors (14413345668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7925751420 is a wasteful number, since it uses less digits than its factorization.
7925751420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 874970 (or 874968 counting only the distinct ones).
The product of its (nonzero) digits is 176400, while the sum is 42.
The square root of 7925751420 is about 89026.6893689752. The cubic root of 7925751420 is about 1993.7933771743.
It can be divided in two parts, 7925751 and 420, that added together give a triangular number (7926171 = T3981).
The spelling of 7925751420 in words is "seven billion, nine hundred twenty-five million, seven hundred fifty-one thousand, four hundred twenty".
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