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11104403040 = 253257711391
BaseRepresentation
bin10100101011101111…
…11011111001100000
31001122212220010021200
422111313323321200
5140220211344130
65033513521200
7542114603613
oct122567737140
931585803250
1011104403040
1147891673a5
12219aa13200
13107c7502b3
14774aca17a
1544ed13760
hex295dfbe60

11104403040 has 72 divisors (see below), whose sum is σ = 37893780288. Its totient is φ = 2961173760.

The previous prime is 11104403003. The next prime is 11104403041. The reversal of 11104403040 is 4030440111.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×111044030402 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11104403041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3854256 + ... + 3857135.

It is an arithmetic number, because the mean of its divisors is an integer number (526302504).

Almost surely, 211104403040 is an apocalyptic number.

11104403040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11104403040 is an abundant number, since it is smaller than the sum of its proper divisors (26789377248).

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

11104403040 is a wasteful number, since it uses less digits than its factorization.

11104403040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7711412 (or 7711401 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11104403040 its reverse (4030440111), we get a palindrome (15134843151).

The spelling of 11104403040 in words is "eleven billion, one hundred four million, four hundred three thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 7711391 15422782 23134173 30845564 38556955 46268346 61691128 69402519 77113910 92536692 115670865 123382256 138805038 154227820 185073384 231341730 246764512 277610076 308455640 347012595 370146768 462683460 555220152 616911280 694025190 740293536 925366920 1110440304 1233822560 1388050380 1850733840 2220880608 2776100760 3701467680 5552201520 11104403040