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252711070 = 2531815197
BaseRepresentation
bin11110001000000…
…01000010011110
3122121112001102021
433010001002132
51004143223240
641024250354
76156002653
oct1704010236
9577461367
10252711070
1111a715627
12707709ba
13404816a1
14257c3c2a
15172bc54a
hexf10109e

252711070 has 16 divisors (see below), whose sum is σ = 469554048. Its totient is φ = 97823520.

The previous prime is 252711059. The next prime is 252711071. The reversal of 252711070 is 70117252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252711071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407289 + ... + 407908.

It is an arithmetic number, because the mean of its divisors is an integer number (29347128).

Almost surely, 2252711070 is an apocalyptic number.

252711070 is a deficient number, since it is larger than the sum of its proper divisors (216842978).

252711070 is a wasteful number, since it uses less digits than its factorization.

252711070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815235.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 252711070 is about 15896.8886893002. Note that the first 3 decimals coincide. The cubic root of 252711070 is about 632.2294989168.

The spelling of 252711070 in words is "two hundred fifty-two million, seven hundred eleven thousand, seventy".

Divisors: 1 2 5 10 31 62 155 310 815197 1630394 4075985 8151970 25271107 50542214 126355535 252711070