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248955480669 = 37147124373307
BaseRepresentation
bin1110011111011011100…
…1110010101001011101
3212210121010122202222010
43213312321302221131
513034330100340134
6310211335541433
723662230445620
oct3476671625135
9783533582863
10248955480669
1196643973435
12402ba82a879
131a62686510c
14c099bd5db7
156721291ce9
hex39f6e72a5d

248955480669 has 32 divisors (see below), whose sum is σ = 379889238016. Its totient is φ = 142062258240.

The previous prime is 248955480661. The next prime is 248955480679. The reversal of 248955480669 is 966084559842.

It is not a de Polignac number, because 248955480669 - 23 = 248955480661 is a prime.

It is a super-2 number, since 2×2489554806692 (a number of 24 digits) 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 (248955480661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75279714 + ... + 75283020.

It is an arithmetic number, because the mean of its divisors is an integer number (11871538688).

Almost surely, 2248955480669 is an apocalyptic number.

It is an amenable number.

248955480669 is a deficient number, since it is larger than the sum of its proper divisors (130933757347).

248955480669 is a wasteful number, since it uses less digits than its factorization.

248955480669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225.

The product of its (nonzero) digits is 149299200, while the sum is 66.

The spelling of 248955480669 in words is "two hundred forty-eight billion, nine hundred fifty-five million, four hundred eighty thousand, six hundred sixty-nine".

Divisors: 1 3 7 21 1471 2437 3307 4413 7311 9921 10297 17059 23149 30891 51177 69447 3584827 4864597 8059159 10754481 14593791 24177477 25093789 34052179 56414113 75281367 102156537 169242339 11855022889 35565068667 82985160223 248955480669