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20025450024 = 233834393751
BaseRepresentation
bin10010101001100111…
…000001111000101000
31220200121102021010020
4102221213001320220
5312003003400044
613111034520440
71306151342136
oct225147017050
956617367106
1020025450024
118546931aa8
123a6a596120
131b71a48918
14d7d82c756
157c30e6a19
hex4a99c1e28

20025450024 has 16 divisors (see below), whose sum is σ = 50063625120. Its totient is φ = 6675150000.

The previous prime is 20025450017. The next prime is 20025450059. The reversal of 20025450024 is 42005452002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 834393751 = 20025450024 / (2 + 0 + 0 + 2 + 5 + 4 + 5 + 0 + 0 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 20025449976 and 20025450003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417196852 + ... + 417196899.

It is an arithmetic number, because the mean of its divisors is an integer number (3128976570).

Almost surely, 220025450024 is an apocalyptic number.

20025450024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20025450024 is an abundant number, since it is smaller than the sum of its proper divisors (30038175096).

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

20025450024 is a wasteful number, since it uses less digits than its factorization.

20025450024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834393760 (or 834393756 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

It can be divided in two parts, 200254 and 50024, that added together give a triangular number (250278 = T707).

The spelling of 20025450024 in words is "twenty billion, twenty-five million, four hundred fifty thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 24 834393751 1668787502 2503181253 3337575004 5006362506 6675150008 10012725012 20025450024