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70389016824 = 23371936716007
BaseRepresentation
bin100000110001110000…
…0110010100011111000
320201200112100112122010
41001203200302203320
52123124042014244
652200344525520
75041206525330
oct1014340624370
9221615315563
1070389016824
1127940846185
12117851808a0
136839c11a19
14359a55c0c0
151c6e854eb9
hex10638328f8

70389016824 has 128 divisors (see below), whose sum is σ = 211789209600. Its totient is φ = 19044305280.

The previous prime is 70389016823. The next prime is 70389016861. The reversal of 70389016824 is 42861098307.

It is a super-2 number, since 2×703890168242 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70389016823) 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, 11714829 + ... + 11720835.

It is an arithmetic number, because the mean of its divisors is an integer number (1654603200).

Almost surely, 270389016824 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 70389016824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105894604800).

70389016824 is an abundant number, since it is smaller than the sum of its proper divisors (141400192776).

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

70389016824 is a wasteful number, since it uses less digits than its factorization.

70389016824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9713 (or 9709 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 70389016824 in words is "seventy billion, three hundred eighty-nine million, sixteen thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 399 456 532 798 1064 1596 3192 3671 6007 7342 11013 12014 14684 18021 22026 24028 25697 29368 36042 42049 44052 48056 51394 69749 72084 77091 84098 88104 102788 114133 126147 139498 144168 154182 168196 205576 209247 228266 252294 278996 308364 336392 342399 418494 456532 488243 504588 557992 616728 684798 798931 836988 913064 976486 1009176 1369596 1464729 1597862 1673976 1952972 2396793 2739192 2929458 3195724 3905944 4793586 5858916 6391448 9587172 11717832 19174344 22051697 44103394 66155091 88206788 132310182 154361879 176413576 264620364 308723758 418982243 463085637 529240728 617447516 837964486 926171274 1234895032 1256946729 1675928972 1852342548 2513893458 2932875701 3351857944 3704685096 5027786916 5865751402 8798627103 10055573832 11731502804 17597254206 23463005608 35194508412 70389016824