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70126530 = 23517197237
BaseRepresentation
bin1000010111000…
…00101111000010
311212221210111220
410023200233002
5120423022110
610543015510
71511031345
oct413405702
9155853456
1070126530
1136648111
121b59a596
13116b42b6
14945645c
156253370
hex42e0bc2

70126530 has 64 divisors (see below), whose sum is σ = 187608960. Its totient is φ = 16671744.

The previous prime is 70126493. The next prime is 70126531. The reversal of 70126530 is 3562107.

It is a self number, because there is not a number n which added to its sum of digits gives 70126530.

It is not an unprimeable number, because it can be changed into a prime (70126531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6072 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (2931390).

Almost surely, 270126530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70126530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93804480).

70126530 is an abundant number, since it is smaller than the sum of its proper divisors (117482430).

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

70126530 is a wasteful number, since it uses less digits than its factorization.

70126530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 70126530 is about 8374.1584651832. The cubic root of 70126530 is about 412.3766977658.

Adding to 70126530 its reverse (3562107), we get a palindrome (73688637).

The spelling of 70126530 in words is "seventy million, one hundred twenty-six thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 19 30 34 38 51 57 85 95 102 114 170 190 255 285 323 510 570 646 969 1615 1938 3230 4845 7237 9690 14474 21711 36185 43422 72370 108555 123029 137503 217110 246058 275006 369087 412509 615145 687515 738174 825018 1230290 1375030 1845435 2062545 2337551 3690870 4125090 4675102 7012653 11687755 14025306 23375510 35063265 70126530