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245488797 = 32191435607
BaseRepresentation
bin11101010000111…
…01110010011101
3122002221010022200
432220131302131
51000321120142
640205402113
76040422531
oct1650356235
9562833280
10245488797
11116632404
126a269339
133bb23258
1424863bc1
151684264c
hexea1dc9d

245488797 has 12 divisors (see below), whose sum is σ = 373258080. Its totient is φ = 155045448.

The previous prime is 245488751. The next prime is 245488801. The reversal of 245488797 is 797884542.

It is a happy number.

245488797 is a `hidden beast` number, since 2 + 4 + 548 + 8 + 7 + 97 = 666.

It is not a de Polignac number, because 245488797 - 27 = 245488669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245488697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717633 + ... + 717974.

It is an arithmetic number, because the mean of its divisors is an integer number (31104840).

Almost surely, 2245488797 is an apocalyptic number.

It is an amenable number.

245488797 is a deficient number, since it is larger than the sum of its proper divisors (127769283).

245488797 is a wasteful number, since it uses less digits than its factorization.

245488797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435632 (or 1435629 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 245488797 is about 15668.0821098180. The cubic root of 245488797 is about 626.1483289595.

The spelling of 245488797 in words is "two hundred forty-five million, four hundred eighty-eight thousand, seven hundred ninety-seven".

Divisors: 1 3 9 19 57 171 1435607 4306821 12920463 27276533 81829599 245488797