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2897338407 = 31756810557
BaseRepresentation
bin1010110010110001…
…1110000000100111
321110220212001002220
42230230132000213
521413204312112
61155300003423
7131540653515
oct25454360047
97426761086
102897338407
111257521257
1268a390573
1337234b432
141d6b214b5
1511e56598c
hexacb1e027

2897338407 has 8 divisors (see below), whose sum is σ = 4090360176. Its totient is φ = 1817937792.

The previous prime is 2897338363. The next prime is 2897338459. The reversal of 2897338407 is 7048337982.

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

It is not a de Polignac number, because 2897338407 - 26 = 2897338343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 56810557 = 2897338407 / (2 + 8 + 9 + 7 + 3 + 3 + 8 + 4 + 0 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 2897338407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897338487) 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, 28405228 + ... + 28405329.

It is an arithmetic number, because the mean of its divisors is an integer number (511295022).

Almost surely, 22897338407 is an apocalyptic number.

2897338407 is a deficient number, since it is larger than the sum of its proper divisors (1193021769).

2897338407 is a wasteful number, since it uses less digits than its factorization.

2897338407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56810577.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 2897338407 is about 53826.9301279573. The cubic root of 2897338407 is about 1425.6067438984.

The spelling of 2897338407 in words is "two billion, eight hundred ninety-seven million, three hundred thirty-eight thousand, four hundred seven".

Divisors: 1 3 17 51 56810557 170431671 965779469 2897338407