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1240115252 = 221771397647
BaseRepresentation
bin100100111101010…
…1010100000110100
310012102111101022112
41021322222200310
510014432142002
6323015550152
742505543235
oct11172524064
93172441275
101240115252
11587015a42
122a738b358
13169bcb60c
14ba9b308c
1573d11852
hex49eaa834

1240115252 has 48 divisors (see below), whose sum is σ = 2339705088. Its totient is φ = 573027840.

The previous prime is 1240115213. The next prime is 1240115267. The reversal of 1240115252 is 2525110421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1916393 + ... + 1917039.

It is an arithmetic number, because the mean of its divisors is an integer number (48743856).

Almost surely, 21240115252 is an apocalyptic number.

It is an amenable number.

1240115252 is a deficient number, since it is larger than the sum of its proper divisors (1099589836).

1240115252 is a wasteful number, since it uses less digits than its factorization.

1240115252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1240115252 is about 35215.2701537273. The cubic root of 1240115252 is about 1074.3703547686.

Adding to 1240115252 its reverse (2525110421), we get a palindrome (3765225673).

The spelling of 1240115252 in words is "one billion, two hundred forty million, one hundred fifteen thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 71 142 284 397 647 794 1207 1294 1588 2414 2588 4828 6749 10999 13498 21998 26996 28187 43996 45937 56374 91874 112748 183748 256859 479179 513718 780929 958358 1027436 1561858 1916716 3123716 4366603 8733206 17466412 18236989 36473978 72947956 310028813 620057626 1240115252