Search a number
-
+
7061998128 = 243197743419
BaseRepresentation
bin1101001001110110…
…11000101000110000
3200020011101200020020
412210323120220300
5103430332420003
63124431043440
7340000664553
oct64473305060
920204350206
107061998128
112aa434a799
121451070580
13887102523
144adc9869a
152b4eb3d53
hex1a4ed8a30

7061998128 has 40 divisors (see below), whose sum is σ = 19203681600. Its totient is φ = 2230104384.

The previous prime is 7061998123. The next prime is 7061998129. The reversal of 7061998128 is 8218991607.

It is not an unprimeable number, because it can be changed into a prime (7061998123) 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, 3870798 + ... + 3872621.

It is an arithmetic number, because the mean of its divisors is an integer number (480092040).

Almost surely, 27061998128 is an apocalyptic number.

It is an amenable number.

7061998128 is an abundant number, since it is smaller than the sum of its proper divisors (12141683472).

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

7061998128 is a wasteful number, since it uses less digits than its factorization.

7061998128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743449 (or 7743443 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The square root of 7061998128 is about 84035.6955584947. The cubic root of 7061998128 is about 1918.5621222345.

The spelling of 7061998128 in words is "seven billion, sixty-one million, nine hundred ninety-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 7743419 15486838 23230257 30973676 46460514 61947352 92921028 123894704 147124961 185842056 294249922 371684112 441374883 588499844 882749766 1176999688 1765499532 2353999376 3530999064 7061998128