Search a number
-
+
1082154931 = 111347592729
BaseRepresentation
bin100000010000000…
…0101111110110011
32210102021011111021
41000200011332303
54204012424211
6255214200311
735550110434
oct10040057663
92712234437
101082154931
11505937020
122624b3097
13143273380
14a3a1548b
156500d771
hex40805fb3

1082154931 has 32 divisors (see below), whose sum is σ = 1320883200. Its totient is φ = 873396480.

The previous prime is 1082154919. The next prime is 1082154959. The reversal of 1082154931 is 1394512801.

It is not a de Polignac number, because 1082154931 - 27 = 1082154803 is a prime.

It is a super-2 number, since 2×10821549312 = 2342118589375229522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1082154961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395175 + ... + 397903.

It is an arithmetic number, because the mean of its divisors is an integer number (41277600).

Almost surely, 21082154931 is an apocalyptic number.

1082154931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1082154931 is a deficient number, since it is larger than the sum of its proper divisors (238728269).

1082154931 is a wasteful number, since it uses less digits than its factorization.

1082154931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1082154931 is about 32896.1233430324. The cubic root of 1082154931 is about 1026.6674998705.

The spelling of 1082154931 in words is "one billion, eighty-two million, one hundred fifty-four thousand, nine hundred thirty-one".

Divisors: 1 11 13 47 59 143 517 611 649 767 2729 2773 6721 8437 30019 30503 35477 36049 128263 161011 390247 396539 1410893 1667419 1771121 2093143 7567517 18341609 23024573 83242687 98377721 1082154931