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670512480 = 253511292151
BaseRepresentation
bin100111111101110…
…011010101100000
31201201200120012120
4213331303111200
52333122344410
6150311224240
722421155611
oct4775632540
91651616176
10670512480
11314539a50
12168678080
13a8bb6761
146509dc08
153dcea570
hex27f73560

670512480 has 288 divisors, whose sum is σ = 2402120448. Its totient is φ = 155904000.

The previous prime is 670512463. The next prime is 670512497. The reversal of 670512480 is 84215076.

It is an interprime number because it is at equal distance from previous prime (670512463) and next prime (670512497).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4440405 + ... + 4440555.

It is an arithmetic number, because the mean of its divisors is an integer number (8340696).

Almost surely, 2670512480 is an apocalyptic number.

670512480 is a gapful number since it is divisible by the number (60) 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 670512480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201060224).

670512480 is an abundant number, since it is smaller than the sum of its proper divisors (1731607968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670512480 is a wasteful number, since it uses less digits than its factorization.

670512480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 670512480 is about 25894.2557336565. The cubic root of 670512480 is about 875.2570586233.

The spelling of 670512480 in words is "six hundred seventy million, five hundred twelve thousand, four hundred eighty".