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425121452 = 22722168987
BaseRepresentation
bin11001010101101…
…101011010101100
31002121221101222222
4121111231122230
51332312341302
6110103454512
713351321100
oct3125553254
91077841888
10425121452
111a8a74048
12ba457438
136a0c8b72
1440663900
15274c6da2
hex1956d6ac

425121452 has 18 divisors (see below), whose sum is σ = 865426212. Its totient is φ = 182194824.

The previous prime is 425121449. The next prime is 425121457. The reversal of 425121452 is 254121524.

It is not an unprimeable number, because it can be changed into a prime (425121457) 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, 1084298 + ... + 1084689.

It is an arithmetic number, because the mean of its divisors is an integer number (48079234).

Almost surely, 2425121452 is an apocalyptic number.

It is an amenable number.

425121452 is an abundant number, since it is smaller than the sum of its proper divisors (440304760).

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

425121452 is a wasteful number, since it uses less digits than its factorization.

425121452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169005 (or 2168996 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 425121452 is about 20618.4735613478. The cubic root of 425121452 is about 751.9189096015.

Adding to 425121452 its reverse (254121524), we get a palindrome (679242976).

The spelling of 425121452 in words is "four hundred twenty-five million, one hundred twenty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 98 196 2168987 4337974 8675948 15182909 30365818 60731636 106280363 212560726 425121452