Search a number
-
+
90704700979200 = 2113552711731297
BaseRepresentation
bin10100100111111011010101…
…011110110011100000000000
3102220011021200120022011100000
4110213323111132303200000
543342101211422313300
6520525055301200000
725051125022125120
oct2447732536634000
9386137616264300
1090704700979200
11269a0714044030
12a20b218a00000
133b7c55536c069
1418581b948cc80
15a746864c1c00
hex527ed57b3800

90704700979200 has 3456 divisors, whose sum is σ = 426083413916160. Its totient is φ = 18575209267200.

The previous prime is 90704700979159. The next prime is 90704700979247. The reversal of 90704700979200 is 297900740709.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 69934232952 + ... + 69934234248.

It is an arithmetic number, because the mean of its divisors is an integer number (123288024860).

Almost surely, 290704700979200 is an apocalyptic number.

90704700979200 is a gapful number since it is divisible by the number (90) 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 90704700979200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213041706958080).

90704700979200 is an abundant number, since it is smaller than the sum of its proper divisors (335378712936960).

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

90704700979200 is a wasteful number, since it uses less digits than its factorization.

90704700979200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 90704700979200 in words is "ninety trillion, seven hundred four billion, seven hundred million, nine hundred seventy-nine thousand, two hundred".