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4978804450 = 2521743179761
BaseRepresentation
bin1001010001100001…
…01000011011100010
3110211222111110201211
410220300220123202
540144033220300
62142013020334
7234244065604
oct45060503342
913758443654
104978804450
112125450524
12b6b4846aa
1361464a249
14353345174
151e216b4ba
hex128c286e2

4978804450 has 96 divisors (see below), whose sum is σ = 10102656960. Its totient is φ = 1818163200.

The previous prime is 4978804409. The next prime is 4978804451. The reversal of 4978804450 is 544088794.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4978804394 and 4978804403.

It is not an unprimeable number, because it can be changed into a prime (4978804451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6542070 + ... + 6542830.

It is an arithmetic number, because the mean of its divisors is an integer number (105236010).

Almost surely, 24978804450 is an apocalyptic number.

4978804450 is an abundant number, since it is smaller than the sum of its proper divisors (5123852510).

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

4978804450 is a wasteful number, since it uses less digits than its factorization.

4978804450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 4978804450 is about 70560.6437754078. The cubic root of 4978804450 is about 1707.5562656392.

The spelling of 4978804450 in words is "four billion, nine hundred seventy-eight million, eight hundred four thousand, four hundred fifty".

Divisors: 1 2 5 10 17 25 34 43 50 85 86 170 179 215 358 425 430 731 761 850 895 1075 1462 1522 1790 2150 3043 3655 3805 4475 6086 7310 7610 7697 8950 12937 15215 15394 18275 19025 25874 30430 32723 36550 38050 38485 64685 65446 76075 76970 129370 130849 136219 152150 163615 192425 261698 272438 323425 327230 384850 556291 646850 654245 681095 818075 1112582 1308490 1362190 1636150 2315723 2781455 3271225 3405475 4631446 5562910 5857417 6542450 6810950 11578615 11714834 13907275 23157230 27814550 29287085 57893075 58574170 99576089 115786150 146435425 199152178 292870850 497880445 995760890 2489402225 4978804450