Search a number
-
+
1074761391 = 311191714133
BaseRepresentation
bin100000000001111…
…1000111010101111
32202220100112110110
41000003320322233
54200114331031
6254351511103
735430215064
oct10003707257
92686315413
101074761391
11501747160
1225bb28493
13141884cb2
14a2a4cc6b
156454cc46
hex400f8eaf

1074761391 has 16 divisors (see below), whose sum is σ = 1645568640. Its totient is φ = 617087520.

The previous prime is 1074761381. The next prime is 1074761417. The reversal of 1074761391 is 1931674701.

It is not a de Polignac number, because 1074761391 - 26 = 1074761327 is a prime.

It is a super-2 number, since 2×10747613912 = 2310224095168509762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1074761371) 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, 856440 + ... + 857693.

It is an arithmetic number, because the mean of its divisors is an integer number (102848040).

Almost surely, 21074761391 is an apocalyptic number.

1074761391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1074761391 is a deficient number, since it is larger than the sum of its proper divisors (570807249).

1074761391 is a wasteful number, since it uses less digits than its factorization.

1074761391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714166.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 1074761391 is about 32783.5536664346. The cubic root of 1074761391 is about 1024.3240090884.

The spelling of 1074761391 in words is "one billion, seventy-four million, seven hundred sixty-one thousand, three hundred ninety-one".

Divisors: 1 3 11 19 33 57 209 627 1714133 5142399 18855463 32568527 56566389 97705581 358253797 1074761391