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1274669485 = 52419971061
BaseRepresentation
bin100101111111001…
…1110100110101101
310021211111220210221
41023332132212231
510102303410420
6330252331341
743405340365
oct11376364655
93254456727
101274669485
115a4577061
122b6a73b51
131741094cb
14c14099a5
1576d89caa
hex4bf9e9ad

1274669485 has 16 divisors (see below), whose sum is σ = 1538939952. Its totient is φ = 1013529600.

The previous prime is 1274669483. The next prime is 1274669489. The reversal of 1274669485 is 5849664721.

It can be written as a sum of positive squares in 8 ways, for example, as 144432324 + 1130237161 = 12018^2 + 33619^2 .

It is not a de Polignac number, because 1274669485 - 21 = 1274669483 is a prime.

It is a Duffinian number.

Its product of digits (2903040) is a multiple of the sum of its prime divisors (2304).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274669483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200855 + ... + 1201915.

It is an arithmetic number, because the mean of its divisors is an integer number (96183747).

Almost surely, 21274669485 is an apocalyptic number.

It is an amenable number.

1274669485 is a deficient number, since it is larger than the sum of its proper divisors (264270467).

1274669485 is a wasteful number, since it uses less digits than its factorization.

1274669485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its digits is 2903040, while the sum is 52.

The square root of 1274669485 is about 35702.5137070207. The cubic root of 1274669485 is about 1084.2577366408.

The spelling of 1274669485 in words is "one billion, two hundred seventy-four million, six hundred sixty-nine thousand, four hundred eighty-five".

Divisors: 1 5 241 997 1061 1205 4985 5305 240277 255701 1057817 1201385 1278505 5289085 254933897 1274669485