Search a number
-
+
20046039888 = 2437311924543
BaseRepresentation
bin10010101010110101…
…100100101101010000
31220202001011100002210
4102222311210231100
5312023241234023
613113052112120
71306521345660
oct225265445520
956661140083
1020046039888
118557515516
123a75465640
131b760a7684
14d8246c1a0
157c4d12593
hex4aad64b50

20046039888 has 80 divisors (see below), whose sum is σ = 61092724736. Its totient is φ = 5542680960.

The previous prime is 20046039887. The next prime is 20046039911. The reversal of 20046039888 is 88893064002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046039887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951856 + ... + 972687.

Almost surely, 220046039888 is an apocalyptic number.

20046039888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20046039888 is an abundant number, since it is smaller than the sum of its proper divisors (41046684848).

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

20046039888 is a wasteful number, since it uses less digits than its factorization.

20046039888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924592 (or 1924586 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 20046039888 in words is "twenty billion, forty-six million, thirty-nine thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 42 48 56 62 84 93 112 124 168 186 217 248 336 372 434 496 651 744 868 1302 1488 1736 2604 3472 5208 10416 1924543 3849086 5773629 7698172 11547258 13471801 15396344 23094516 26943602 30792688 40415403 46189032 53887204 59660833 80830806 92378064 107774408 119321666 161661612 178982499 215548816 238643332 323323224 357964998 417625831 477286664 646646448 715929996 835251662 954573328 1252877493 1431859992 1670503324 2505754986 2863719984 3341006648 5011509972 6682013296 10023019944 20046039888