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2925010640 = 245531096329
BaseRepresentation
bin1010111001011000…
…0001111011010000
321112211220221021102
42232112001323100
521442300320030
61202125043532
7132325115546
oct25626017320
97484827242
102925010640
111271101872
126976b65a8
13377cb9a36
141da685d96
15121bcec45
hexae581ed0

2925010640 has 80 divisors (see below), whose sum is σ = 6993637200. Its totient is φ = 1137217536.

The previous prime is 2925010639. The next prime is 2925010681. The reversal of 2925010640 is 460105292.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 228493456 + 2696517184 = 15116^2 + 51928^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×29250106403 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458996 + ... + 465324.

It is an arithmetic number, because the mean of its divisors is an integer number (87420465).

Almost surely, 22925010640 is an apocalyptic number.

2925010640 is a gapful number since it is divisible by the number (20) 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 2925010640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3496818600).

2925010640 is an abundant number, since it is smaller than the sum of its proper divisors (4068626560).

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

2925010640 is a wasteful number, since it uses less digits than its factorization.

2925010640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6504 (or 6498 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2925010640 is about 54083.3674987052. The cubic root of 2925010640 is about 1430.1309870722.

The spelling of 2925010640 in words is "two billion, nine hundred twenty-five million, ten thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 109 212 218 265 424 436 530 545 848 872 1060 1090 1744 2120 2180 4240 4360 5777 6329 8720 11554 12658 23108 25316 28885 31645 46216 50632 57770 63290 92432 101264 115540 126580 231080 253160 335437 462160 506320 670874 689861 1341748 1379722 1677185 2683496 2759444 3354370 3449305 5366992 5518888 6708740 6898610 11037776 13417480 13797220 26834960 27594440 36562633 55188880 73125266 146250532 182813165 292501064 365626330 585002128 731252660 1462505320 2925010640