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6948890624 = 211132171181
BaseRepresentation
bin1100111100010111…
…11010100000000000
3122221021120012220102
412132023322200000
5103212403444444
63105310501532
7334125411224
oct63613724000
918837505812
106948890624
112a46516415
12141b2048a8
1386984c900
1449cc54784
152aa0c084e
hex19e2fa800

6948890624 has 144 divisors (see below), whose sum is σ = 15943915260. Its totient is φ = 3015966720.

The previous prime is 6948890609. The next prime is 6948890693. The reversal of 6948890624 is 4260988496.

It can be written as a sum of positive squares in 6 ways, for example, as 3500852224 + 3448038400 = 59168^2 + 58720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6948890624.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5883314 + ... + 5884494.

Almost surely, 26948890624 is an apocalyptic number.

6948890624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6948890624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7971957630).

6948890624 is an abundant number, since it is smaller than the sum of its proper divisors (8995024636).

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

6948890624 is a wasteful number, since it uses less digits than its factorization.

6948890624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 56.

The square root of 6948890624 is about 83360.0061420343. The cubic root of 6948890624 is about 1908.2641524616.

The spelling of 6948890624 in words is "six billion, nine hundred forty-eight million, eight hundred ninety thousand, six hundred twenty-four".

Divisors: 1 2 4 8 13 16 17 26 32 34 52 64 68 104 128 136 169 208 221 256 272 338 416 442 512 544 676 832 884 1024 1088 1181 1352 1664 1768 2048 2176 2362 2704 2873 3328 3536 4352 4724 5408 5746 6656 7072 8704 9448 10816 11492 13312 14144 15353 17408 18896 20077 21632 22984 26624 28288 30706 34816 37792 40154 43264 45968 56576 61412 75584 80308 86528 91936 113152 122824 151168 160616 173056 183872 199589 226304 245648 261001 302336 321232 346112 367744 399178 452608 491296 522002 604672 642464 735488 798356 982592 1044004 1209344 1284928 1470976 1596712 1965184 2088008 2418688 2569856 2941952 3193424 3393013 3930368 4176016 5139712 5883904 6386848 6786026 7860736 8352032 10279424 12773696 13572052 15721472 16704064 20558848 25547392 27144104 31442944 33408128 41117696 51094784 54288208 66816256 102189568 108576416 133632512 204379136 217152832 267265024 408758272 434305664 534530048 868611328 1737222656 3474445312 6948890624