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51062070 = 23523431721
BaseRepresentation
bin1100001011001…
…0010100110110
310120002012222210
43002302110312
5101032441240
65022234250
71160010003
oct302622466
9116065883
1051062070
1126906764
1215125986
13a76a957
146ad28aa
154739780
hex30b2536

51062070 has 64 divisors (see below), whose sum is σ = 130927104. Its totient is φ = 12714240.

The previous prime is 51062041. The next prime is 51062083. The reversal of 51062070 is 7026015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28810 + ... + 30530.

It is an arithmetic number, because the mean of its divisors is an integer number (2045736).

Almost surely, 251062070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51062070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65463552).

51062070 is an abundant number, since it is smaller than the sum of its proper divisors (79865034).

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

51062070 is a wasteful number, since it uses less digits than its factorization.

51062070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 51062070 is about 7145.7728763235. The cubic root of 51062070 is about 370.9933618398.

Adding to 51062070 its reverse (7026015), we get a palindrome (58088085).

The spelling of 51062070 in words is "fifty-one million, sixty-two thousand, seventy".

Divisors: 1 2 3 5 6 10 15 23 30 43 46 69 86 115 129 138 215 230 258 345 430 645 690 989 1290 1721 1978 2967 3442 4945 5163 5934 8605 9890 10326 14835 17210 25815 29670 39583 51630 74003 79166 118749 148006 197915 222009 237498 370015 395830 444018 593745 740030 1110045 1187490 1702069 2220090 3404138 5106207 8510345 10212414 17020690 25531035 51062070