Search a number
-
+
1078451124820 = 2251723137909351
BaseRepresentation
bin11111011000110001011…
…00100011101001010100
310211002200010001111011121
433230120230203221110
5120132131441443240
62143233354213324
7140626011211366
oct17543054435124
93732603044147
101078451124820
113864065aa143
12155017124244
137a90b557c64
143a2a95d8d36
151d0bdc8404a
hexfb18b23a54

1078451124820 has 48 divisors (see below), whose sum is σ = 2502227282688. Its totient is φ = 388352729600.

The previous prime is 1078451124787. The next prime is 1078451124847. The reversal of 1078451124820 is 284211548701.

1078451124820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 68946856 + ... + 68962495.

It is an arithmetic number, because the mean of its divisors is an integer number (52129735056).

Almost surely, 21078451124820 is an apocalyptic number.

1078451124820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078451124820 is an abundant number, since it is smaller than the sum of its proper divisors (1423776157868).

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

1078451124820 is a wasteful number, since it uses less digits than its factorization.

1078451124820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137909400 (or 137909398 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 1078451124820 in words is "one trillion, seventy-eight billion, four hundred fifty-one million, one hundred twenty-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 170 230 340 391 460 782 1564 1955 3910 7820 137909351 275818702 551637404 689546755 1379093510 2344458967 2758187020 3171915073 4688917934 6343830146 9377835868 11722294835 12687660292 15859575365 23444589670 31719150730 46889179340 53922556241 63438301460 107845112482 215690224964 269612781205 539225562410 1078451124820