Search a number
-
+
7950545479680 = 21135284391033
BaseRepresentation
bin111001110110010000101…
…1100000110100000000000
31001011001202011222110200120
41303230201130012200000
52020230204120322210
624524232530020240
71450256633350236
oct163544134064000
931131664873616
107950545479680
112595897720141
12a84a51717680
1345896bb7129b
141d6b46582956
15dbc2a41e270
hex73b21706800

7950545479680 has 192 divisors, whose sum is σ = 25444760402880. Its totient is φ = 2119376437248.

The previous prime is 7950545479661. The next prime is 7950545479711. The reversal of 7950545479680 is 869745450597.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×79505454796802 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87291444 + ... + 87382476.

It is an arithmetic number, because the mean of its divisors is an integer number (132524793765).

Almost surely, 27950545479680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7950545479680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12722380201440).

7950545479680 is an abundant number, since it is smaller than the sum of its proper divisors (17494214923200).

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

7950545479680 is a wasteful number, since it uses less digits than its factorization.

7950545479680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93906 (or 93886 counting only the distinct ones).

The product of its (nonzero) digits is 381024000, while the sum is 69.

The spelling of 7950545479680 in words is "seven trillion, nine hundred fifty billion, five hundred forty-five million, four hundred seventy-nine thousand, six hundred eighty".