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20377334754 = 234722977823
BaseRepresentation
bin10010111110100101…
…010111001111100010
31221121010112212020000
4102332211113033202
5313213044203004
613210005000430
71320653326140
oct227645271742
957533485200
1020377334754
118707524227
123b483b3116
131bc991193a
14db446a590
157e3e53c39
hex4be9573e2

20377334754 has 80 divisors (see below), whose sum is σ = 52212619008. Its totient is φ = 5818817088.

The previous prime is 20377334753. The next prime is 20377334773. The reversal of 20377334754 is 45743377302.

It is not an unprimeable number, because it can be changed into a prime (20377334753) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2600887 + ... + 2608709.

Almost surely, 220377334754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20377334754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26106309504).

20377334754 is an abundant number, since it is smaller than the sum of its proper divisors (31835284254).

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

20377334754 is a wasteful number, since it uses less digits than its factorization.

20377334754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141 (or 10132 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 45.

The spelling of 20377334754 in words is "twenty billion, three hundred seventy-seven million, three hundred thirty-four thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 1134 2297 4594 6891 7823 13782 15646 16079 20673 23469 32158 41346 46938 48237 54761 62019 70407 96474 109522 124038 140814 144711 164283 186057 211221 289422 328566 372114 422442 434133 492849 633663 868266 985698 1267326 1302399 1478547 2604798 2957094 4435641 8871282 17969431 35938862 53908293 107816586 125786017 161724879 251572034 323449758 377358051 485174637 754716102 970349274 1132074153 1455523911 2264148306 2911047822 3396222459 6792444918 10188667377 20377334754