Search a number
-
+
1130772640 = 25529243701
BaseRepresentation
bin100001101100110…
…0011100010100000
32220210202012110011
41003121203202200
54303434211030
6304112214304
740010260144
oct10331434240
92823665404
101130772640
11530323248
1227683a394
1315036654a
14aa26d224
1569413b2a
hex436638a0

1130772640 has 48 divisors (see below), whose sum is σ = 2763580680. Its totient is φ = 436710400.

The previous prime is 1130772623. The next prime is 1130772641. The reversal of 1130772640 is 462770311.

It can be written as a sum of positive squares in 4 ways, for example, as 983198736 + 147573904 = 31356^2 + 12148^2 .

It is not an unprimeable number, because it can be changed into a prime (1130772641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117211 + ... + 126490.

Almost surely, 21130772640 is an apocalyptic number.

1130772640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130772640 is an abundant number, since it is smaller than the sum of its proper divisors (1632808040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1130772640 is a wasteful number, since it uses less digits than its factorization.

1130772640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243745 (or 243737 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 1130772640 is about 33626.9629910285. The cubic root of 1130772640 is about 1041.8177775303.

The spelling of 1130772640 in words is "one billion, one hundred thirty million, seven hundred seventy-two thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 80 116 145 160 232 290 464 580 928 1160 2320 4640 243701 487402 974804 1218505 1949608 2437010 3899216 4874020 7067329 7798432 9748040 14134658 19496080 28269316 35336645 38992160 56538632 70673290 113077264 141346580 226154528 282693160 565386320 1130772640