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12023531310 = 235728179273
BaseRepresentation
bin10110011001010100…
…01000011100101110
31011000221101200020110
423030222020130232
5144111011000220
65305030000450
7603645221100
oct131452103456
934027350213
1012023531310
11510aa7403a
1223b67a6126
131197cb338b
14820bc5570
154a586cbe0
hex2cca8872e

12023531310 has 48 divisors (see below), whose sum is σ = 33567740496. Its totient is φ = 2748235392.

The previous prime is 12023531263. The next prime is 12023531329. The reversal of 12023531310 is 1313532021.

It is a super-2 number, since 2×120235313102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4088167 + ... + 4091106.

It is an arithmetic number, because the mean of its divisors is an integer number (699327927).

Almost surely, 212023531310 is an apocalyptic number.

12023531310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12023531310 is an abundant number, since it is smaller than the sum of its proper divisors (21544209186).

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

12023531310 is a wasteful number, since it uses less digits than its factorization.

12023531310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179297 (or 8179290 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The spelling of 12023531310 in words is "twelve billion, twenty-three million, five hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 8179273 16358546 24537819 40896365 49075638 57254911 81792730 114509822 122689095 171764733 245378190 286274555 343529466 400784377 572549110 801568754 858823665 1202353131 1717647330 2003921885 2404706262 4007843770 6011765655 12023531310