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252042455 = 5719936187
BaseRepresentation
bin11110000010111…
…01110011010111
3122120021002020202
433001131303113
51004010324310
641002051115
76150216440
oct1701356327
9576232222
10252042455
1111a2a9255
12704a9a9b
13402a9262
142568c2c7
15171d93a5
hexf05dcd7

252042455 has 16 divisors (see below), whose sum is σ = 347404800. Its totient is φ = 171955872.

The previous prime is 252042449. The next prime is 252042463. The reversal of 252042455 is 554240252.

It is a cyclic number.

It is not a de Polignac number, because 252042455 - 210 = 252041431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11129 + ... + 25058.

It is an arithmetic number, because the mean of its divisors is an integer number (21712800).

Almost surely, 2252042455 is an apocalyptic number.

252042455 is a deficient number, since it is larger than the sum of its proper divisors (95362345).

252042455 is a wasteful number, since it uses less digits than its factorization.

252042455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36398.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 252042455 is about 15875.8450168802. The cubic root of 252042455 is about 631.6714288118.

The spelling of 252042455 in words is "two hundred fifty-two million, forty-two thousand, four hundred fifty-five".

Divisors: 1 5 7 35 199 995 1393 6965 36187 180935 253309 1266545 7201213 36006065 50408491 252042455