Search a number
-
+
1071000140 = 225743177907
BaseRepresentation
bin111111110101100…
…010101001001100
32202122021102222212
4333311202221030
54143134001030
6254135125552
735353231250
oct7765425114
92678242885
101071000140
114aa608291
1225a8138b8
13140b68cc2
14a2350260
1564058595
hex3fd62a4c

1071000140 has 48 divisors (see below), whose sum is σ = 2630191872. Its totient is φ = 358658496.

The previous prime is 1071000137. The next prime is 1071000169. The reversal of 1071000140 is 410001701.

It is a happy number.

It is a super-2 number, since 2×10710001402 = 2294082599760039200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82934 + ... + 94973.

It is an arithmetic number, because the mean of its divisors is an integer number (54795664).

Almost surely, 21071000140 is an apocalyptic number.

1071000140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071000140 is an abundant number, since it is smaller than the sum of its proper divisors (1559191732).

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

1071000140 is a wasteful number, since it uses less digits than its factorization.

1071000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177966 (or 177964 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1071000140 is about 32726.1384828702. The cubic root of 1071000140 is about 1023.1276992647.

Adding to 1071000140 its reverse (410001701), we get a palindrome (1481001841).

The spelling of 1071000140 in words is "one billion, seventy-one million, one hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 177907 355814 711628 889535 1245349 1779070 2490698 3558140 4981396 6226745 7650001 12453490 15300002 24906980 30600004 38250005 53550007 76500010 107100014 153000020 214200028 267750035 535500070 1071000140