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670297469 = 3146494651
BaseRepresentation
bin100111111100111…
…110110101111101
31201201021122021012
4213330332311331
52333044004334
6150302445005
722416302012
oct4774766575
91651248235
10670297469
11314402456
12168593765
13a8b3c92a
1465045709
153dca69ce
hex27f3ed7d

670297469 has 8 divisors (see below), whose sum is σ = 692217600. Its totient is φ = 648396000.

The previous prime is 670297399. The next prime is 670297477. The reversal of 670297469 is 964792076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670297469 - 220 = 669248893 is a prime.

It is a super-2 number, since 2×6702974692 = 898597393895611922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670297499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141794 + ... + 146444.

It is an arithmetic number, because the mean of its divisors is an integer number (86527200).

Almost surely, 2670297469 is an apocalyptic number.

It is an amenable number.

670297469 is a deficient number, since it is larger than the sum of its proper divisors (21920131).

670297469 is a wasteful number, since it uses less digits than its factorization.

670297469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 670297469 is about 25890.1036884753. The cubic root of 670297469 is about 875.1634933678.

The spelling of 670297469 in words is "six hundred seventy million, two hundred ninety-seven thousand, four hundred sixty-nine".

Divisors: 1 31 4649 4651 144119 144181 21622499 670297469