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252410042 = 2263541887
BaseRepresentation
bin11110000101101…
…11100010111010
3122120221202111002
433002313202322
51004104110132
641014005002
76153310223
oct1702674272
9576852432
10252410042
1111a52a445
1270646762
13403a7671
142574624a
151725d262
hexf0b78ba

252410042 has 16 divisors (see below), whose sum is σ = 381186432. Its totient is φ = 125351280.

The previous prime is 252410017. The next prime is 252410057. The reversal of 252410042 is 240014252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 252409996 and 252410023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284123 + ... + 285009.

It is an arithmetic number, because the mean of its divisors is an integer number (23824152).

Almost surely, 2252410042 is an apocalyptic number.

252410042 is a deficient number, since it is larger than the sum of its proper divisors (128776390).

252410042 is a wasteful number, since it uses less digits than its factorization.

252410042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 252410042 is about 15887.4177259868. The cubic root of 252410042 is about 631.9783631032.

Adding to 252410042 its reverse (240014252), we get a palindrome (492424294).

The spelling of 252410042 in words is "two hundred fifty-two million, four hundred ten thousand, forty-two".

Divisors: 1 2 263 526 541 887 1082 1774 142283 233281 284566 466562 479867 959734 126205021 252410042