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61679008 = 2523181463
BaseRepresentation
bin1110101101001…
…0010110100000
311022001121200201
43223102112200
5111242212013
610041554544
71346156116
oct353222640
9138047621
1061679008
11318a8396
12187a5a54
13ca17271
148297ab6
1556353dd
hex3ad25a0

61679008 has 48 divisors (see below), whose sum is σ = 127685376. Its totient is φ = 29272320.

The previous prime is 61679003. The next prime is 61679011. The reversal of 61679008 is 80097616.

It is not an unprimeable number, because it can be changed into a prime (61679003) 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, 132985 + ... + 133447.

It is an arithmetic number, because the mean of its divisors is an integer number (2660112).

Almost surely, 261679008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61679008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63842688).

61679008 is an abundant number, since it is smaller than the sum of its proper divisors (66006368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61679008 is a wasteful number, since it uses less digits than its factorization.

61679008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 61679008 is about 7853.5984109197. The cubic root of 61679008 is about 395.1049403388.

The spelling of 61679008 in words is "sixty-one million, six hundred seventy-nine thousand, eight".

Divisors: 1 2 4 8 16 23 32 46 92 181 184 362 368 463 724 736 926 1448 1852 2896 3704 4163 5792 7408 8326 10649 14816 16652 21298 33304 42596 66608 83803 85192 133216 167606 170384 335212 340768 670424 1340848 1927469 2681696 3854938 7709876 15419752 30839504 61679008