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425204202012400 = 24521063010505031
BaseRepresentation
bin110000010101110001001000…
…1011010101111111011110000
32001202112010100220221210002001
41200223202101122233323300
5421213021201203344100
64104200040323303344
7155363663340125416
oct14053422132577360
92052463326853061
10425204202012400
111135350a8a92508
123b83350ab1ab54
1315334779646885
1476dddc942b2b6
15342580c9d5d6a
hex182b8916afef0

425204202012400 has 30 divisors (see below), whose sum is σ = 1021553095335752. Its totient is φ = 170081680804800.

The previous prime is 425204202012371. The next prime is 425204202012407. The reversal of 425204202012400 is 4210202402524.

It is a happy number.

It is a super-2 number, since 2×4252042020124002 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425204202012407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 531505252116 + ... + 531505252915.

Almost surely, 2425204202012400 is an apocalyptic number.

425204202012400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425204202012400 is an abundant number, since it is smaller than the sum of its proper divisors (596348893323352).

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

425204202012400 is a wasteful number, since it uses less digits than its factorization.

425204202012400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063010505049 (or 1063010505038 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 425204202012400 its reverse (4210202402524), we get a palindrome (429414404414924).

The spelling of 425204202012400 in words is "four hundred twenty-five trillion, two hundred four billion, two hundred two million, twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 1063010505031 2126021010062 4252042020124 5315052525155 8504084040248 10630105050310 17008168080496 21260210100620 26575262625775 42520420201240 53150525251550 85040840402480 106301050503100 212602101006200 425204202012400