Search a number
-
+
197874232608 = 25313158553071
BaseRepresentation
bin1011100001001000111…
…0010010110100100000
3200220202012021111211210
42320102032102310200
511220221300420413
6230522511310120
720203336140303
oct2702216226440
9626665244753
10197874232608
1176a10933748
123242381b340
1315875aaba50
149811a48b3a
155231a1c3c3
hex2e12392d20

197874232608 has 48 divisors (see below), whose sum is σ = 559375238016. Its totient is φ = 60884378880.

The previous prime is 197874232603. The next prime is 197874232691. The reversal of 197874232608 is 806232478791.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (197874232601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79275288 + ... + 79277783.

It is an arithmetic number, because the mean of its divisors is an integer number (11653650792).

Almost surely, 2197874232608 is an apocalyptic number.

It is an amenable number.

197874232608 is an abundant number, since it is smaller than the sum of its proper divisors (361501005408).

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

197874232608 is a wasteful number, since it uses less digits than its factorization.

197874232608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158553097 (or 158553089 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 197874232608 in words is "one hundred ninety-seven billion, eight hundred seventy-four million, two hundred thirty-two thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 158553071 317106142 475659213 634212284 951318426 1268424568 1902636852 2061189923 2536849136 3805273704 4122379846 5073698272 6183569769 7610547408 8244759692 12367139538 15221094816 16489519384 24734279076 32979038768 49468558152 65958077536 98937116304 197874232608