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11210031420 = 2235726690551
BaseRepresentation
bin10100111000010101…
…11000000100111100
31001221020122121011220
422130022320010330
5140424232001140
65052205513340
7544536460230
oct123412700474
931836577156
1011210031420
114832852585
12220a272850
1310985b48b3
14784b445c0
1545922abd0
hex29c2b813c

11210031420 has 48 divisors (see below), whose sum is σ = 35872101888. Its totient is φ = 2562292800.

The previous prime is 11210031419. The next prime is 11210031467. The reversal of 11210031420 is 2413001211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11210031420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13344856 + ... + 13345695.

It is an arithmetic number, because the mean of its divisors is an integer number (747335456).

Almost surely, 211210031420 is an apocalyptic number.

11210031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210031420 is an abundant number, since it is smaller than the sum of its proper divisors (24662070468).

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

11210031420 is a wasteful number, since it uses less digits than its factorization.

11210031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26690570 (or 26690568 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11210031420 its reverse (2413001211), we get a palindrome (13623032631).

The spelling of 11210031420 in words is "eleven billion, two hundred ten million, thirty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 26690551 53381102 80071653 106762204 133452755 160143306 186833857 266905510 320286612 373667714 400358265 533811020 560501571 747335428 800716530 934169285 1121003142 1601433060 1868338570 2242006284 2802507855 3736677140 5605015710 11210031420