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3457920187 = 8355697481
BaseRepresentation
bin1100111000011011…
…1010110010111011
322220222200112202001
43032012322302323
524040211421222
61331043121431
7151455556651
oct31606726273
98828615661
103457920187
1115149a6687
12806073277
13431525227
1424b366dd1
15153898e27
hexce1bacbb

3457920187 has 8 divisors (see below), whose sum is σ = 3500678160. Its totient is φ = 3415188480.

The previous prime is 3457920157. The next prime is 3457920233. The reversal of 3457920187 is 7810297543.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3457920187 is a prime.

It is a super-2 number, since 2×34579201872 = 23914424039324229938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3457920107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458487 + ... + 465967.

It is an arithmetic number, because the mean of its divisors is an integer number (437584770).

Almost surely, 23457920187 is an apocalyptic number.

3457920187 is a deficient number, since it is larger than the sum of its proper divisors (42757973).

3457920187 is an equidigital number, since it uses as much as digits as its factorization.

3457920187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13133.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 3457920187 is about 58804.0830810242. The cubic root of 3457920187 is about 1512.1852177558.

The spelling of 3457920187 in words is "three billion, four hundred fifty-seven million, nine hundred twenty thousand, one hundred eighty-seven".

Divisors: 1 83 5569 7481 462227 620923 41661689 3457920187