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470232397 = 3115168787
BaseRepresentation
bin11100000001110…
…010110101001101
31012202211021120201
4130001302311031
51430334414042
6114354413501
714436623635
oct3401626515
91182737521
10470232397
11221485618
12111591291
1376561b2b
14466476c5
152b4381b7
hex1c072d4d

470232397 has 4 divisors (see below), whose sum is σ = 485401216. Its totient is φ = 455063580.

The previous prime is 470232383. The next prime is 470232439. The reversal of 470232397 is 793232074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793232074 = 2396616037.

It is a cyclic number.

It is not a de Polignac number, because 470232397 - 215 = 470199629 is a prime.

It is a super-2 number, since 2×4702323972 = 442237014376731218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470232317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7584363 + ... + 7584424.

It is an arithmetic number, because the mean of its divisors is an integer number (121350304).

Almost surely, 2470232397 is an apocalyptic number.

It is an amenable number.

470232397 is a deficient number, since it is larger than the sum of its proper divisors (15168819).

470232397 is a wasteful number, since it uses less digits than its factorization.

470232397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168818.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 470232397 is about 21684.8425634128. The cubic root of 470232397 is about 777.6261362818.

The spelling of 470232397 in words is "four hundred seventy million, two hundred thirty-two thousand, three hundred ninety-seven".

Divisors: 1 31 15168787 470232397