Search a number
-
+
17208294980 = 2257091213561
BaseRepresentation
bin10000000001101100…
…011011111001000100
31122102021102221220112
4100001230123321010
5240220310414410
611523321252152
71146303044132
oct200154337104
948367387815
1017208294980
1173306a7798
123403034058
1318131c3186
14b93620752
156aab1e105
hex401b1be44

17208294980 has 24 divisors (see below), whose sum is σ = 36188418840. Its totient is φ = 6873603840.

The previous prime is 17208294979. The next prime is 17208295019. The reversal of 17208294980 is 8949280271.

It can be written as a sum of positive squares in 4 ways, for example, as 285407236 + 16922887744 = 16894^2 + 130088^2 .

It is a super-2 number, since 2×172082949802 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592601 + ... + 620960.

It is an arithmetic number, because the mean of its divisors is an integer number (1507850785).

Almost surely, 217208294980 is an apocalyptic number.

17208294980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17208294980 is an abundant number, since it is smaller than the sum of its proper divisors (18980123860).

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

17208294980 is a wasteful number, since it uses less digits than its factorization.

17208294980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214279 (or 1214277 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 17208294980 in words is "seventeen billion, two hundred eight million, two hundred ninety-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 709 1418 2836 3545 7090 14180 1213561 2427122 4854244 6067805 12135610 24271220 860414749 1720829498 3441658996 4302073745 8604147490 17208294980