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252480404 = 221116573463
BaseRepresentation
bin11110000110010…
…00101110010100
3122121002100000002
433003020232110
51004113333104
641015310432
76154022321
oct1703105624
9577070002
10252480404
1111a5782a0
127067b418
13404006b7
1425763b48
151727401e
hexf0c8b94

252480404 has 24 divisors (see below), whose sum is σ = 482438208. Its totient is φ = 114661440.

The previous prime is 252480373. The next prime is 252480433. The reversal of 252480404 is 404084252.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 71177 + ... + 74639.

It is an arithmetic number, because the mean of its divisors is an integer number (20101592).

Almost surely, 2252480404 is an apocalyptic number.

It is an amenable number.

252480404 is a deficient number, since it is larger than the sum of its proper divisors (229957804).

252480404 is a wasteful number, since it uses less digits than its factorization.

252480404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135 (or 5133 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 252480404 is about 15889.6319655302. The cubic root of 252480404 is about 632.0370812244.

It can be divided in two parts, 2524 and 80404, that added together give a palindrome (82928).

The spelling of 252480404 in words is "two hundred fifty-two million, four hundred eighty thousand, four hundred four".

Divisors: 1 2 4 11 22 44 1657 3314 3463 6628 6926 13852 18227 36454 38093 72908 76186 152372 5738191 11476382 22952764 63120101 126240202 252480404