Base | Representation |
---|---|
bin | 1101110100100111… |
… | …11110000101111100 |
3 | 201011011110220020010 |
4 | 12322103332011330 |
5 | 110144203431130 |
6 | 3224204423220 |
7 | 351615313020 |
oct | 67223760574 |
9 | 21134426203 |
10 | 7420764540 |
11 | 3168912262 |
12 | 1531247b10 |
13 | 913537947 |
14 | 5057a8380 |
15 | 2d67300b0 |
hex | 1ba4fe17c |
7420764540 has 96 divisors (see below), whose sum is σ = 23762350080. Its totient is φ = 1695038976.
The previous prime is 7420764539. The next prime is 7420764541. The reversal of 7420764540 is 454670247.
It is an interprime number because it is at equal distance from previous prime (7420764539) and next prime (7420764541).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7420764541) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 731221 + ... + 741299.
It is an arithmetic number, because the mean of its divisors is an integer number (247524480).
Almost surely, 27420764540 is an apocalyptic number.
7420764540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
7420764540 is an abundant number, since it is smaller than the sum of its proper divisors (16341585540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7420764540 is a wasteful number, since it uses less digits than its factorization.
7420764540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11851 (or 11849 counting only the distinct ones).
The product of its (nonzero) digits is 188160, while the sum is 39.
The square root of 7420764540 is about 86143.8595606210. The cubic root of 7420764540 is about 1950.5161500205.
The spelling of 7420764540 in words is "seven billion, four hundred twenty million, seven hundred sixty-four thousand, five hundred forty".
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