Base | Representation |
---|---|
bin | 100111111100000… |
… | …000100101111000 |
3 | 1201200210200111110 |
4 | 213330000211320 |
5 | 2333012324423 |
6 | 150253200320 |
7 | 22414160433 |
oct | 4774004570 |
9 | 1650720443 |
10 | 670042488 |
11 | 314248925 |
12 | 1684900a0 |
13 | a8a8085b |
14 | 64dba81a |
15 | 3dc56193 |
hex | 27f00978 |
670042488 has 64 divisors (see below), whose sum is σ = 1777973760. Its totient is φ = 209696256.
The previous prime is 670042487. The next prime is 670042489. The reversal of 670042488 is 884240076.
It is an interprime number because it is at equal distance from previous prime (670042487) and next prime (670042489).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (670042487) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187131 + ... + 190677.
It is an arithmetic number, because the mean of its divisors is an integer number (27780840).
Almost surely, 2670042488 is an apocalyptic number.
670042488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 670042488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888986880).
670042488 is an abundant number, since it is smaller than the sum of its proper divisors (1107931272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
670042488 is a wasteful number, since it uses less digits than its factorization.
670042488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4036 (or 4032 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 39.
The square root of 670042488 is about 25885.1789254005. The cubic root of 670042488 is about 875.0525086312.
The spelling of 670042488 in words is "six hundred seventy million, forty-two thousand, four hundred eighty-eight".
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