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10013312220 = 2235374510501
BaseRepresentation
bin10010101001101011…
…10000010011011100
3221211211210222001120
421110311300103130
5131001401442340
64333340010540
7503065515042
oct112465602334
927754728046
1010013312220
11427928774a
121b35530a50
13c3769b822
146adc2a392
153d913c4d0
hex254d704dc

10013312220 has 48 divisors (see below), whose sum is σ = 28795044768. Its totient is φ = 2598048000.

The previous prime is 10013312209. The next prime is 10013312251. The reversal of 10013312220 is 2221331001.

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 10013312220.

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, 2253031 + ... + 2257470.

It is an arithmetic number, because the mean of its divisors is an integer number (599896766).

Almost surely, 210013312220 is an apocalyptic number.

10013312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10013312220 is an abundant number, since it is smaller than the sum of its proper divisors (18781732548).

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

10013312220 is a wasteful number, since it uses less digits than its factorization.

10013312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510550 (or 4510548 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10013312220 its reverse (2221331001), we get a palindrome (12234643221).

The spelling of 10013312220 in words is "ten billion, thirteen million, three hundred twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 4510501 9021002 13531503 18042004 22552505 27063006 45105010 54126012 67657515 90210020 135315030 166888537 270630060 333777074 500665611 667554148 834442685 1001331222 1668885370 2002662444 2503328055 3337770740 5006656110 10013312220