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245871069 = 3106976667
BaseRepresentation
bin11101010011110…
…11000111011101
3122010122112200220
432221323013131
51000420333234
640221511553
76043604163
oct1651730735
9563575626
10245871069
11116873634
126a4125b9
133bc28252
1424923233
15168baa49
hexea7b1dd

245871069 has 8 divisors (see below), whose sum is σ = 328139040. Its totient is φ = 163758576.

The previous prime is 245871061. The next prime is 245871079. The reversal of 245871069 is 960178542.

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

It is not a de Polignac number, because 245871069 - 23 = 245871061 is a prime.

It is a super-2 number, since 2×2458710692 = 120905165142405522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245871069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245871061) 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, 35127 + ... + 41540.

It is an arithmetic number, because the mean of its divisors is an integer number (41017380).

Almost surely, 2245871069 is an apocalyptic number.

It is an amenable number.

245871069 is a deficient number, since it is larger than the sum of its proper divisors (82267971).

245871069 is a wasteful number, since it uses less digits than its factorization.

245871069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77739.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 245871069 is about 15680.2764325123. The cubic root of 245871069 is about 626.4731704486.

The spelling of 245871069 in words is "two hundred forty-five million, eight hundred seventy-one thousand, sixty-nine".

Divisors: 1 3 1069 3207 76667 230001 81957023 245871069