Search a number
-
+
20703378696 = 233711134121019
BaseRepresentation
bin10011010010000001…
…000111110100001000
31222102212001121102120
4103102001013310020
5314400031104241
613302213131240
71332022546440
oct232201076410
958385047376
1020703378696
118864576930
124019629b20
131c4c32ab50
14100589d120
158128a9666
hex4d2047d08

20703378696 has 256 divisors, whose sum is σ = 71192217600. Its totient is φ = 4842547200.

The previous prime is 20703378653. The next prime is 20703378739. The reversal of 20703378696 is 69687330702.

It is an interprime number because it is at equal distance from previous prime (20703378653) and next prime (20703378739).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 974475 + ... + 995493.

It is an arithmetic number, because the mean of its divisors is an integer number (278094600).

Almost surely, 220703378696 is an apocalyptic number.

20703378696 is a gapful number since it is divisible by the number (26) 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 20703378696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35596108800).

20703378696 is an abundant number, since it is smaller than the sum of its proper divisors (50488838904).

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

20703378696 is a wasteful number, since it uses less digits than its factorization.

20703378696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21100 (or 21096 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 51.

The spelling of 20703378696 in words is "twenty billion, seven hundred three million, three hundred seventy-eight thousand, six hundred ninety-six".