Search a number
-
+
1041387880 = 235132002669
BaseRepresentation
bin111110000100100…
…101000101101000
32200120112222121111
4332010211011220
54113043403010
6251200320104
734543436161
oct7604450550
92616488544
101041387880
11494922145
12250913034
1313799b660
149c442768
156165958a
hex3e125168

1041387880 has 32 divisors (see below), whose sum is σ = 2523364200. Its totient is φ = 384512256.

The previous prime is 1041387869. The next prime is 1041387911. The reversal of 1041387880 is 887831401.

It can be written as a sum of positive squares in 4 ways, for example, as 856264644 + 185123236 = 29262^2 + 13606^2 .

It is a super-2 number, since 2×10413878802 = 2168977433221788800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1000815 + ... + 1001854.

Almost surely, 21041387880 is an apocalyptic number.

1041387880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1041387880 is an abundant number, since it is smaller than the sum of its proper divisors (1481976320).

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

1041387880 is a wasteful number, since it uses less digits than its factorization.

1041387880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002693 (or 2002689 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1041387880 is about 32270.5419849125. The cubic root of 1041387880 is about 1013.6098905628.

The spelling of 1041387880 in words is "one billion, forty-one million, three hundred eighty-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2002669 4005338 8010676 10013345 16021352 20026690 26034697 40053380 52069394 80106760 104138788 130173485 208277576 260346970 520693940 1041387880